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Stephen Hawking on The Future
Posted by
Hemos
on Fri Jan 07, 2000 07:04 AM
from the and-it-came-through-his-box dept.
from the and-it-came-through-his-box dept.
RalfM writes "As far as people worth listening to go, Stephen Hawking
is right up there. Some newspapers are currently presenting
a rare
interview with him about the future. Points mentioned include
Marylin Monroe, off-planet migration, DNA reprogramming, limits to human brain processing ("We can be quick-witted or very
intelligent, but not both.") and more. "
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Ibanix, please read this.... (Score:2)
In evolutionary terms, Hawking is "fit" because he has "what it takes" to survive.
Fitness is not determined by rock hard abdominals or the ability to run a mile in under 6 minutes; and "survival of the fittest" does not mean that people who play varsity sports will populate the world of tomorrow. darwinian fitness != physical fitness
get this through your #^%#ing thick skull: "survival of the fittest" can be restated as "survival of those entities, whom to their respective environments, are fitted best".
In yet other words, if an animal has traits that allow it to survive, and it does survive (long enough to transmit those traits) then those traits continue to exist.
now go to your church, where your pastor/minister/priest/whatever will explain to you that evil people like me are all parts of god's plan, and that you must have faith in His greatness, and that because the Bible clearly states that He created Everything, I am clearly wrong, and a sinner to boot. Please do the world a favor and stop looking both ways when you cross the street.
a comment on the darwinian survival of religion: Religion is a fit meme because it is attractive to many types of people (those brainwashed since youth, or on death row, or just dumb). The mere fact that the majority beleives something does not make it true; this goes for god AND Darwin. If you really want to break your mind, read up on Geodel's theorem (its math). It basically says that no internally consistent system can be complete, ie, nothing can account for everything. :P
there is no god, there is no truth, there is only opinion. Just because your opinion is that there IS a god and a truth, does not make it so; just as MY opinion that there is only opinion, does not make it so.
The most absolute statement anyone can make is, "this I believe"; at least, that's what I believe. 8-P~~~
Hawking Slashdot interview? (Score:2)
Any other interest?
Re:It was also interesting that . . . (Score:2)
Given the failure rate that NASA has had, this might be a correct assumption!
-- Does Rain Man use the Autistic License for his software?
Re:Such a pessimist... (re. space living) (Score:2)
But that assumes the implications of our current model of how the universe works is correct. His flow of logic here is "FTL implies time travel is possible, time travel means at some point the future equivalent of a script kiddie would have come back and wiped out civilization, therefore no time travel." But that assumes the "FTL implies time travel" statement is correct. It probably is, but I wouldn't state it (or *anything* in science) as gospel.
Re:Bad Journalism (Score:2)
Teddy Roosevelt was very fit, though he did have bad eyesight, and consequently very thick glasses.
Don Negro
Re:Bad Journalism (Score:2)
Re:Random thoughts (Score:2)
Don't forget... (Score:2)
Re:karaoke machine? (Score:2)
It doesn't fall apart at all (Score:2)
LEM is brilliant (Score:2)
Hawking's predicament, with his multiple wives and staff of sassy nurses also brings to mind Heinlein. I almost envy the man!
Re:Stephen Hawking, first hand account (Score:2)
I'd like to see him act more gracefully, but I won't condemn him for doing otherwise. Same goes for the bridge. He may have waited in the past and found that traffic never slows enough to let him pass unhindered, so better to just be rude and jump right in.
As for the papers and stealing, I have no idea of the veracity of this. I suppose, after he dies and biographies are written, the truth will come out one way or the other.
Steven Hawking Kicks Ass (Score:2)
FTL without time-travel (Score:2)
Other links:
Unfortunately the paper itself has been taken down by Cardiff university, and I couldn't find it mirrored anywhere.
Re:Why ask Hawking? (Score:2)
When I first met them a few years ago, in one of our conversations, I asked if 'Brief History of Time' was considered basic theoretical physics theory.
The answer suprised me. They told me that not only were most of the things in the book not considered basic theory, but many if not most of the ideas put forward as fact were highly controversial and hotly contested in the field of astro-physics.
It seems that Hawking, while respected, well thought of, and certainly a smart cookie, is not the all-influential demigod that most of us believe that he is.
He does get great press, though....
jf
Re:Hawking is obviously wrong (Score:2)
Nowhere was it stated that intelligence arose directly from the interaction between molecules; perhaps consciousness is an epiphenomenon of those interactions, and intelligence arises from that?
The human race needs mental and physical improvement? That doesn't require genetic engeneering, just some common sense. Look at the educational system - it is designed to make you dumb. But, obviously, you cannot fix the educational system by genetic engeneering. Or just watch some television. Stupid talkshows everyday ( 90% about relationship problems ). And the list goes on and on...
You're not thinking about the same sort of improvement as Stephen Hawking is. Just because you can't think outside the box (the word 'qualities' is a clue to the potential difference being qualitative) doesn't mean that "Hawking is obviously wrong".
Does anybody really want this ? Growing babies outside of the body reminds of some alien species
Plenty of species not alien to our environment grow babies outside their bodies. And can you not see the difference between using 10% of your brain and using 10% of your potential? Most importantly, what does your squeamishness have to do with whether or not "Hawking is obviously wrong"?
Hamish
Re:darwinian fitness != physical fitness.... readm (Score:2)
2) I can think of a few people who would come away from an interview with me thinking that I am a complete arsehole; I don't think that I am being excessively arrogant in thinking that this would reflect more heavily on them than on myself.
3) Have you noticed that the person that became Stephen's second wife, which is brave even disregarding the slating that he got from the press over that separation, was a former nurse of his?
Never having met the man, I cannot give you my own impressions of him. But I can tell you that the reason that he does not speak about his separation, which caused many people to form negative opinions about him (because he did not defend himself against the accusations brought against him by the press), is to protect his former wife.
Re:a shame (Score:2)
You'd also need a degree in theoretical physics to understand it. Lets face it, the guy creates and destroys entire universes in his head. He's on another level to most of us. I consider myself lucky to live in the same city as he does, but if I ever got to meet him, I wouldn't have a clue what to ask him. Would you?
"Some smegger's filled in this 'Have You Got A Good Memory?' quiz!"
Re:relativity is well tested at high speeds (Score:2)
This argument is nonsensical, because you're using relativity to prove that relativity doesn't break down. You also added the "in a simple way" disclaimer. I don't believe I claimed that FTL travel would be simple.
Seriously, though, I'm familiar with everything you said, and am in no way implying that simply concocting a hotter burning rocket fuel could propel us at FTL velocities. That's a ridiculous notion.
However, the existence of luxons would seem to invalidate the assumption that nothing can reach the speed of light. And as far as I know, nobody has yet been able to disprove the existence of tachyons. Assuming that they exist, then there must be a means of attaining FTL velocity, although such means would almost certainly be far more complex than normal acceleration. (Now if I could just figure out how to build a spaceship with imaginary mass, we'd be all set.
Basically, all I'm saying is that since we have not made a lot of direct observations of massive objects travelling at or very near c, we can't know exactly what happens under these circumstances. Relativity makes predictions, but relativity is known to be an incomplete theory. Perhaps (probably, even) the predictions relativity makes regarding light speed travel are correct, but perhaps, just perhaps, the fact that relativity describes this as an impossible phenomenon simply implies that this is one of the limits of relativity.
I'm not prepared to argue that FTL travel is definitely, absolutely, and unarguably attainable. I'm also not prepared to completely disregard the idea based on the predictions of a model that is know to be incomplete. Some of the greatest advances in science have come about because of the observation of phenomena that should not have been possible based on the current models of the time.
Re:a shame (Score:2)
The other point to sort of fill in your journalism comment is that the author didn't seem qualified to interpret and report on Hawkingsmost interesting technical topics and I don't know that I'd place a lot of faith in any new and revolutionary findings THAT article might have made. The technical papers based on his actual work are available. This article is just a different perspective on the person that is Hawkings. It does also have the benefit of covering topics that probably wouldn't be covered in those other articles. Certainly not authored by a credible theoretical physics technical journalist 8^)
Re:Such a pessimist... (re. space living) (Score:2)
Re:How he communicates (Score:2)
http://www.damtp.cam.ac.uk/user/hawking/compute
Sorry,
Alex
Re:The great irony... (Score:2)
In the sense of evolution, "fitness" is a term applied to a species, not an individual. It is a question of a species being adapted to its environment, and is not a question of being stronger, faster, smarter, tougher etc. The notion that fitness can be measured on some absolute scale, is intimately connected with the assumption that evolution is heading towards some ultimate goal (teleology). It isn't.
Genetic diversity is an important component of "fitness". Indeed genetic "purity" is the contrary of fitness. A species in which all the individuals are supremely well adapted to the current environment, but not to a slightly different one is heading for extinction.
Now, back to human beings. The notion of being adapted to our environment makes no sense for us since we have learned to adapt the environment to our own needs. Furthermore we are reasoning animals, capable of acting according to values that are meaningless to all other species. Trying to justify some kind of barbaric social model in terms of what happens in the rest of nature ignores everything that makes us human.
Re:karaoke machine? (Score:2)
Just thought you'd want to know
Re:The great irony... (Score:2)
What can we learn from this?
That evolution ought to make us dumber, since intelligence is screwing everything up.
(cf. Galapagos, Kurt Vonnegut)
Such a pessimist... (re. space living) (Score:2)
I don't think physics has decided yet whether we can cheat our way past light speed. I agree that it seems unlikely, but we shouldn't give up hope.
"...Earth is by far the most favoured planet in the solar system. Mars is small, cold and without much atmosphere, and the other planets are quite unsuitable for human beings. We either have to learn to live in space stations or travel to the next star. We won't do that in the next century."
IMHO, people could have moved off the planet in vast numbers already, all it would take is some good PR and getting rid of NASA (which hasn't improved on it's launch methods since the sixties, and continues to convince everyone that space travel is so horribly complicated that only big government bureaucracies can handle it).
Mars may be small, but since it's not all covered with oceans, it has just as much land area as Earth. With the development of aerogels, we can pretty much just tent over as big an area as we like. If we send a few thousand people over, they'll get sick of living in cans and figure it out pretty quickly.
Space stations are pretty trivial. You mould a metallic asteroid into a big can, fill it with air, and spin it (you can make one miles thick with Earth gravity even out of aluminum and steel; as we get better at working with carbon we'll make whole hollow worlds). If you make it big enough, you don't even need to worry about micrometeors poking holes, because it would take months or years for all the air to escape. If we weren't such pansies about fission rockets and fission power stations, we could have done this stuff in the fifties.
supraluminal travel != time travel (Score:2)
I didn't miss his point, I just don't agree with it.
For the usual obvious reasons, I consider time travel impossible.
However, I don't believe unquestioningly that travel faster than light speed is impossible just because the current popular theory says it is. Whatever else we know about relativity, we know that it's not complete. It doesn't describe everything, and we may yet produce conditions under which the relativistic time distortions do not occur.
whoops, missed a bit (Score:2)
(I don't remember who did the experiment, or whether it's been independently confirmed; could anyone help me out here?)
relativity is well tested at high speeds (Score:2)
As particles are accelerated closer and closer to the speed of light, they become more and more massive along a curve that leads to infinity at the speed of light. This has been experimentally confirmed to a high degree (though obviously they haven't created an object of infinite mass going light speed). I don't know much about the experimental support for the relativistic time dilation effect (presumably particles with short half-lives survive for correspondingly longer amounts of time when accelerated near the speed of light), but time is also supposed to slow down and stop at the speed of light (i.e. time is divided by a curve which starts at 1 at full stop and approaches infinite values asymptotically to light speed). Both of these effects prevent any object from reaching light speed.
The idea that relativity breaks down at light speed is nonsensical, because no object can ever reach light speed (in a simple way).
When physicists talk about travelling "faster than light," they are talking about non-trivial, non-obvious tricks (like warping space to make the path shorter, or using quantum tunneling to "teleport" in billions of little jumps, or using wormholes to slip crossways along a hidden dimension to a place that only seems far away in 3D). It's pretty well experimentally supported that you can't just build a good enough rocket to go faster than light.
I knew he was smart... (Score:2)
Hawking is well known for his sense of humour - he likes joking about the American accent his voice synthesiser has given him and about his appearances as himself in his two favourite American ("which isn't saying much")programmes, Star Trek and The Simpsons.
I mean, really, are the ANY smart people who don't watch the Simpsons.;)
Just a thought (Score:2)
--
Marilyn Vos Savant (Score:2)
It first bothers me that people assume that her IQ makes her the expert on everything from science to relationships and ethics. People seem to forget that there's a difference between INTELLIGENCE and KNOWLEDGE--intelligent people aren't born wise, and wise people aren't always geniuses.
My second gripe is that she propagates this myth by actually fielding these questions! I'm sure she knows better, and whether there's pressure from the publishers I don't know, but I wish she wouldn't.
Why cant /. have an interview with Dr. Hawkins ?? (Score:2)
Manifest
He does have an email address... (TV ad, anyone?) (Score:2)
On an unrelated note, does anyone on that side of the pond have a copy of the television advertisements for "Specsavers" (??) that the interview mentioned? I haven't even seen the Simpsons appearance, and I never knew that he'd done commercials!
Re:He does have an email address... (TV ad, anyone (Score:2)
Hmm.
Re:supraluminal travel != time travel (Score:2)
Clearly, this has not been experementally observed, but it is based on such fundamental parts of fundamental and well tested theory (realitivity) that it seems unlikely to be wrong. I mean just look at the argument.. its pretty straight forward and uses only basic idea's about realitivity.
Jeff
Re:Why in person? - Because it's ABOUT the person! (Score:3)
The article is an article about Stephen Hawking, not about Stephen Hawking's thoughts or Stephen Hawking's works.
It is IMNSHO a very good article, since rather than regurgitating his theories in a layman's language that is both inaccurate and hard for most people to understand, it actually focusses on the person himself.
I had no idea it took that length of time to compose his answers. I had no idea what sort of room he lived in or that he had come so close to death.
I'll grant you that this age has an unhealthly interest in personality and personality cults, but this article was a good few notches above Hello magazine. It struck me as an honest account of what and how the author felt interview the person, and since I have often wondered what it would be like to talk to him, I found it interesting.
Some thoughts from the peanut gallery (Score:3)
Second, having been to a lecture given by Professor Hawking, I can say that any description of his humour will always be understated. He is absolutely brilliant, in a way that isn't blaming or shaming, but -does- draw a laugh.
Third, I felt Professor Hawking's first wife was a little unfairly treated in the article. It can't be easy being in a 100% dependent relationship with a media & scientific celebrity, who is also a genius. Everyone needs to receive, sometime, but in a situation like that, it's difficult to imagine Jane receiving much of the affection or support she needs, as a human being. That's not to say that she's an "innocent victim", or anything. The illness was affecting Professor Hawking severely (leading to at least one collapse, according to the TV version of Brief History) long before they met. Jane may have had a very rough time of things, and my deepest sympathies for that, but it almost certainly was in full knowledge of what she was doing. Passing the buck helps no-one, and merely sets her well on the path of making similar choices in future, choosing emotionally and/or physically unavailable people for friends or relationships. That's not a clever path to be on. Fortunately, it is possible to choose another, but only if the person chooses.
Fourthly, contact with alien civilisations does NOT require "them" to be at the same level of technology as yourself. That, I think, is a flaw in Professor Hawking's logic. They merely need to have used comparable technology within a window of time that matches up with how long it takes for such signals to reach us, within the timespan that usable detectors exist on Earth. (eg: We could detect electromagnetic devices or -very- intense Neutrino devices with existing observatories. As more forms of information are discovered, more forms of communication are covered, even if we are not as yet capable of understanding such communication.)
Lastly, you don't need to break the speed of light to exceed it. If there is any way of exploiting non-local effects, quantum-scale wormholes, tesseracts, or other strange (but mathematically valid) phenomina, it may be possible to travel very long distances in relatively short times, WITHOUT causing time-travel paradoxes. This may be a solution to the problem.
His illnes and celebrity (Score:3)
You sound a little bitter about his success, and I'm sure you have your own personal reasons for that, largely boiling down to jealousy and/or disappointment in your own achievements and the recognition you feel they do or don't deserve. Get over it, I say, and get on with your own work, whatever that is. No one ever achieved greatness OR celebrity by muttering bitterly about the success of another.
a shame (Score:3)
However, I was treated to an article about the writer, in which he described, in great detail, every aspect of Dr. Hawkings condition. This was not what I was looking for, it is sad that this article made it through a writer, and an editor. At no point no one stopped to think, "Hm... we have a genious here, why are we spending most of our time on how the writer perceives things?" Call me crazy, but I don't give two shits about how the writer felt about the 5 minute long pauses between answers, I equally don't give a shit about the regimen of pills and Dr. Hawkings love life! I wanted meat, I wanted guts, I wanted science... and I got fluff. Hell of a way to throw away a chance to trully ask why and wherefore of genious... by the same token, I know a lot of the journalism majors at my university... and I don't think they could have come up with much better questions either. A better standard for interviewing and journalism is needed, the journalist is just an eye witness to the world around him, not an active participant... that's just my 2 cents.
Re:a shame (Score:3)
I actually liked the article, since it gave you insight into the man. He is a fascinating figure, for precisely the contradiction the reporter stated: the giant intellect locked in a body incapable of communicating more than a few words per minute.
In a way, the article de-romanticised Hawking. He's just a man, although incredibly gifted and incredibly infirm. You get more of a feel for his sense of humor, and at the same time a feel for the ego behind it. All people generally see of him is the wheelchair, the voice synthesizer, and the towering intellect. It's interesting that he, too, has feelings, has failings, and even acknowledges them.
It seems easy to put men like Hawking into a typecast role. Einstein, for example, was probably the root of the "absent minded professor" stereotype that's turned up in so many movies. It came as a revelation to many that he had had a child outsite of marriage, and had actually treated the mother and child fairly poorly. To understand these people, and how they came to be who they are, it's important to look at the entire person.
Of course, there's nothing wrong with just looking at a person's body of work. For most of the music I listen to, for example, I couldn't care less about the personal lives of the artist. In some cases, you want to get to know the person behind the art or science, in other cases you don't. This was an article for people who wanted to get to know a bit more about Hawking, the man, rather than Hawking's body of scientific work.
What irony? (Score:3)
That's funny, I thought the man had children and even grandchildren. That pretty much shoots down the 'useless for evolutionary sake' argument.
As for 'survival of the fittest' it is important to realize that nature's idea of fitness is very different from what humans value as desirable. A lot of people seem to have this really weird idea that, as the human race evolves, we will become more "advanced" in an idealistic StarTrek kind of way -- we'll become smarter, for example. But that doesn't necessarily follow. If Darwinian genetic selection has its way, we might get smarter and faster, or we might dumb down and turn into Cockroach People instead. Who knows?
But the whole process is being tampered with on a wide scale these days, anyway. While Uncle Chuck's theory of evolution does a great job of explaining the past, it's almost useless for predicting the future. For the last few thousand years, memetic selection has totally overpowered genetic selection, and even genetics themselves will be manipulated (as Hawking touched on in the article). The situation is so complex now, that there's just no telling who is really more "fit" and who isn't. That crippled people like Hawking are around, isn't ironic or surprising at all.
---
Not just a scientific review. (Score:3)
What we come down to is this:
- We all agree that the man is brilliant beyond measure.
- We get a chance to see that while he's an intellectual giant, he's also as human as the rest of us.
Conversationally, although slow, Hawking is fascinating. He has knowledge and understanding on a broad range of subjects. Why else would Cosmopolitan readers vote him one or the 10 sexiest men on the planet? {My wife showed that one to me.})We come away from this article, not with some Earth shattering pearl of wisdom from Dr. Hawking but, with a glimps into what his world is like.
"Una piccola canzone, un piccolo ballo, poco seltzer giù i vostri pantaloni."
Some people just don't get it. (Score:3)
Most of the outrage seems to center around the "expressing his thoughts at the speed of an imbecille" comment. When I read this comment, I saw in it, not the writer's impatience with, but his empathy for Hawking's condition. The writer was trying to get us to imagine for a moment what it would be like to live that way and how it might change our outlook on life. We have to wonder, could we cope the way Hawking has? In a similar vein, the connection the writer draws between Hawking's condition and his prediction of genetic engineering in the future was insightful.
Of course, if you went in hoping for a slate of predictions about what might await us in the years to come, I can see how you would be disappointed, but, frankly, I am bored with futurists' predictions. They fall basically into two categories: wild and largely unfounded speculation, and timid, conservative predictions of incremental change. I find Hawking himself more interesting than his predictions were likely to be, and I was glad the writer used speculating about the future as a pretext to give us a glimpse into what makes him tick.
-r
Stephen Hawking: The Slashdot Interview (Score:3)
If so, when
if not why not?
I would think that we could come up with better questions than this moronic journalist did.
Why he is so intelligent... (Score:4)
Perhaps this is why he's so smart. He's forced to think about what he says before he does it. Many of us are lead to knee jerk reactions
Running out of space by 2600 (Score:4)
The formula I used is this:
((4*pi*(6371315)^2)*.3)/((6e9)*2^n), where n is the number of times the population doubles. The exponential condition given was that the population doubles each 40 years. I used 3:10 as the land to total area ratio.
-- Does Rain Man use the Autistic License for his software?
Random thoughts (Score:4)
One of the first things to hit me was that the author was trying to portray Dr. Hawking as an actual human being, as opposed to the "cybernetic being" his illness has forced him into. The reference to his image superimposed on a picture of Marilyn Monroe was a refreshing divergence from the usual portrayal of the man.
However, I was later offended by the author's apparent lack of patience. His comment about "a man...condemned forever to articulate his thoughts at the speed of an imbecile" made me wince. Here he is, one of a privileged few journalists with the opportunity to spend an afternoon with the greatest mind of the last 50 years, and he is focussing on the man's physical disabilities. I nearly stopped reading at that point.
I didn't, though. And later on, even though the author repeatedly referred to the duration of the pauses he "endured", I began to detect a shift in the author's attitude. For one, by the end of the article, he was focusing more and more on *what* Dr. Hawking had to say, and not the way in which it was said. The man can't help it if a computer has to vocalize his thoughts for him. Thankfully, this issue was deemphasized later on.
One the the high points of the article is that it touches on the guest appearances he has done on ST:TNG and The Simpsons. I find it interesting that he enjoys the satiric, biting wit of the Simpsons!
One point I want to make, that the author didn't, and may not even know, refers to the quote from David Schramm (yes, this is probably quite minor)... the author refers to Dr. Schramm in the present. Unfortunately, he passed away in a single-engine plane crash in December 1997.
All in all, I though the interview contained much information about his personal life that has not been addressed much in other articles. I just wish the author had not come across as a bit crass in the beginning. If I did not come from a physics background, and thus hold Dr. Hawking in the highest regard, I might not have read the article through to the end for that reason.
All this, of course, IMO. And yes, real news for nerds!
Eric
Why ask Hawking? (Score:4)
But I wonder why people feel it's useful to ask Prof. Hawking these type of questions. Of course he's phenomenally intelligent. But he's a theoretical physicist. Are his opinions on space travel, genetic engineering etc. really of more worth than any other highly intelligent non-expert's?
No, I fear that people only ask him because he's a celebrity. And I fear that he's mainly a celebrity because of his illness. But that's a whole nother rant...
Re:Why ask Hawking? (Score:5)
Now, I would hesitate to call Hawking a fraud because he's popular. I believe he's popular for a reason. During graduate studies in particle physics, I had the pleasure to go through nasty and complex peer-reviewed journals like Quantum Gravity and the eternal Physics Letter. I stumbled upon a few of Stephen Hawking's papers.
They're the real thing. The guys does have a knack for theoretical thinking, and many of his ideas are both controversial, somewhat useless, and fascinating. He's done a lot of theoretical work on black holes, as well, and in this field, he is considered a pioneer.
(One final exam question in a General Relativity class went like this: Given Hawking's Law, calculate the resulting maximal mass and angular momentum of two black holes of equal mass but opposite angular momentum. Fun!)
The journalists and the public are to blame, here. They're the ones who go see Hawking like he's got some sort of dedicated phone line with God. But that's what's the public perception of science inevitably is. You wouldn't believe the questions I get asked that have nothing to do with my field of expertise.
A Brief History of Time's goal was to entertain and make the public's mind bend around physics problems. As such, it was magnificently successful. Of course it ain't established astrophysical theory, and of course it contains controversial material. Anything that's ever been considered interesting in Science has been controversial. Heck, Newton's Theory of Gravitation is still considered controversial by some people.
I think this interview illustrates the perception of the media, and the usual response Hawking gives. His whole 'We haven't received visitors from the future' gig is old, but it makes people laugh and dream. He plays the celebrity gig, and usually he doesn't have anything much to say to people looking up to him like some sort of Homeric hero. But to discredit him as a scientist, and say he's anything but a brilliant one, is not understanding the man fully.
Yes, there are many other scientists alive who probably deserve Hawking's exposure, only for their ideas and their minds. But celebrity isn't just about minds. When Hawking and I speak of physics, the layman probably has no idea who says the most profound things, because it's all a blur to them. But Hawking is in a wheelchair and is an eccentric. And that, usually, means celebrity more than mastery of mathematics.