bio | website | |
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location | University of California, Berkeley | |
age | 68 | |
visits | member for | 5 years, 3 months |
seen | Mar 24 '14 at 1:18 | |
stats | profile views | 1,072 |
May 25 |
comment |
Major mathematical advances past age fifty
Just for the record, Poincaré never actually expressed his so-called conjecture as a conjecture; rather he brought it up as a question. After incorrectly making the conjecture that homology suffices to detect a 3-sphere -- and ingeniously finding a counterexample to that -- he was evidently chastened enough to refrain from phrasing what is called the Poincaré Conjecture as an actual conjecture. |
May 9 |
comment |
Chance of something being fixed
I believe this is an ill-posed question, contrary to the implications of the previous comment and the 3 answers at the time of this writing. Regardless of the values of n, p, and m, there is no way to know, in any sense of the word, that the probability that the defect has been fixed is >= p. (Rather, in this situation statisticians make use of confidence intervals.) |
May 9 |
answered | Examples of common false beliefs in mathematics |
May 6 |
awarded | Scholar |
May 6 |
accepted | Maximally symmetric smooth projective varieties in CP^2 |
May 2 |
answered | Why worry about the axiom of choice? |
Apr 25 |
comment |
Correlation and Causation. When can we believe correlation (reasonably, at least) imply causation
I vote against closing, even though the question could have been phrased somewhat more precisely. The importance of our understanding how to perform causal inference cannot be underestimated. Any improvement in our current understanding of this matter could be used to combat many kinds of ills in the world, such as diseases and crime. A very important general question is how to begin with a large amount of observational data about, say, how disease X is caused -- say 10,000 people's health status and auxiliary variables -- and extract the most likely guesses as to the etiology of X. |
Apr 25 |
awarded | Supporter |
Apr 20 |
awarded | Editor |
Apr 20 |
awarded | Student |
Apr 20 |
awarded | Teacher |
Mar 28 |
answered | Why do dynamicists worry so much about differentiability hypotheses in smooth dynamics? |
Mar 28 |
revised |
Maximally symmetric smooth projective varieties in CP^2
added 2 characters in body; added 1 characters in body |
Mar 28 |
asked | Maximally symmetric smooth projective varieties in CP^2 |