1198: Edward Witten-ing
Author(s): Scott Douglas Jacobsen
Publication (Outlet/Website): Medium (Personal)
Publication Date (yyyy/mm/dd): 2025/05/13
1987
âIt is very possible that a proper understanding of string theory will make the spaceâtime continuum melt away ⊠String theory is a miracle through and through.â
âVibrating strings in 10 dimensions is just a weird fact ⊠An explanation of that weird fact would tell you why there are 10 dimensions in the first place.â
âI donât think that any physicist would have been clever enough to have invented string theory on purpose ⊠Luckily, it was invented by accident.â
1992
âQuantum mechanics ⊠developed through some rather messy, complicated processes stimulated by experiment. While itâs a very rich and wonderful theory, it doesnât quite have the conceptual foundation of general relativity. Our problem in physics is that everything is based on these two different theories and when we put them together we get nonsense.â
âIn Newtonâs day the problem was to write something which was correct â he never had the problem of writing nonsense; but by the twentieth century ⊠itâs difficult to do things which are even internally coherent, much less correct ⊠that is one of the main reasons we are still able to make advances.â
âI think one has to regard it as a longâterm process. ⊠One has to remember that string theory, if you choose to date it from the Veneziano model, is already eighteen years old ⊠that quantum electrodynamic theory toward which Planck was heading [in 1900] took fifty years to emerge.â
âMost people who havenât been trained in physics probably think of what physicists do as a question of incredibly complicated calculations, but thatâs not really the essence of it ⊠physics is about concepts, wanting to understand the concepts, the principles by which the world works.â
1995
âString theory is extremely attractive because gravity is forced upon us. All known consistent string theories include gravity, so while gravity is impossible in quantum field theory as we have known it, it is obligatory in string theory.â
1996
âIt was clear that if I didnât spend the rest of my life concentrating on string theory, I would simply be missing my lifeâs calling.â
âEven though it is, properly speaking, a postâprediction â in the sense that the experiment was made before the theory â the fact that gravity is a consequence of string theory, to me, is one of the greatest theoretical insights ever.â
âGenerally speaking, all the really great ideas of physics are really spinâoffs of string theory ⊠Some of them were discovered first, but I consider that a mere accident of the development on planet Earth âŠâ
âGood wrong ideas are extremely scarce ⊠and good wrong ideas that even remotely rival the majesty of string theory have never been seen.â
1998
âMâtheory ⊠a deeper, unique and more profound theory called âMâtheory,â where M stands for magic, mystery, or membrane, according to taste.â
1999
âIf supersymmetry plays the role in physics that we suspect it does, then it is very likely to be discovered by the next generation of particle accelerators ⊠Discovery of supersymmetry would certainly give string theory an enormous boost.â
2003
âString theory is an attempt at a deeper description of nature by thinking of an elementary particle not as a little point but as a little loop of vibrating string.â
2006
âThe greatest intellectual thrill of my life was learning that string theory could encompass both gravity and quantum mechanics.â
2010
âIf I take the theory as we have it now, literally, I would conclude that extra dimensions really exist. Theyâre part of nature.â
2016
âI think consciousness will remain a mystery ⊠I have a much easier time imagining how we understand the Big Bang than I have imagining how we can understand consciousness.â
2017
âPhysics in quantum field theory and string theory somehow has a lot of mathematical secrets in it, which we donât know how to extract in a systematic way.â
2019
âIâve come to terms with the landscape idea and the sense of not being upset about it, as I was for many years.â
â⊠Iâve come to believe that the whole âit from qubitâ stuff â the relation between geometry and entanglement â is the most interesting direction.â
âThe intimate tie between math and physics seems to be a fact of life. I canât imagine what it would mean to explain it.â
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