Mr. Soros, the chairman of Soros Fund Management, is best-known as a speculator, philanthropist and political activist. He made a fortune by doing things such as betting against Britain's currency in 1992 and Thailand's in 1997. A Hungarian refugee, he has spent millions to promote democracy and learning in post-Soviet nations.

Low interest rates are usually attributed to low inflation, weak economic growth and super easy monetary policy. But there's another deep-seated factor that doesn't get much attention: demographics.

When people retire, their income drops much more sharply than their consumption. As a result, they stop saving and start drawing down the assets they've acquired during their high-saving years. That could start to put upward pressure on interest rates and downward pressure on stock prices.

It is probably the case that some regulation of financing will make crises less likely, and I would say higher capital requirements are an almost fail-safe way to make banks safer. But there are a lot of other things that may not be doing that, and so we need to be careful about sort of, like, rushing to one conclusion or another.

When you start a company, it's more an art than a science because it's totally unknown. Instead of solving high-profile problems, try to solve something that's deeply personal to you. Ideally, if you're an ordinary person and you've just solved your problem, you might have solved the problem for millions of people.

We need policymakers to keep an eye on gender and write policies that are explicitly designed to include underserved populations like girls in computer science courses.

All writers are going to have to learn more about science, because it's such an interesting part of their environment.

Evidence-based reasoning underpins all scientific thinking, and it involves testing hypotheses or theories against data. Validating a theory requires replicable measurements from independent groups with different equipment and methods of analysis. Convergence of evidence is critical to the acceptance of a scientific idea.