Jweb_Guru
Joined 12 years ago
Joined 12 years ago
* the tests here concern particles that aren't actually known to exist yet * lots of variants of string theory can be invalidated by the (non)existence of particles at particular masses or with particular properties * moreover, this kind of invalidation has already happened on many occasions * as usual it's only some models of string theory that are ruled out
So the headline and article are both kind of rubbish. In this case I wouldn't even say it's just a misleading headline because the article acts as though some (or even lots of) models of string theory getting hypothetically ruled out by a particle having a certain mass is a brand new thing.
In this case, I think part of the problem is that there was kind of no good reason to think the Jacobian conjecture was true in > 2 dimensions other than it being kind of hard to find counterexamples. So a really interesting disproof would be one that, e.g., was able to exhaustively classify the counterexamples, or showed why it seemed in practice to be hard to come up with functions violating the conjecture. AFAIK, this doesn't really accomplish either of those things, not even after you learn the procedure that constructed the function -- it kind of tells you why we should have expected to find a counterexample but not how rare such counterexamples are.