Nuclear plants should be financed with venture equity rather than project finance, because what is left is technology-execution risk and American venture capital is the best in the world at underwriting that.

physics Fundamental physics: unification, relativity and quantum mechanics, and whether string theory is still the candidate.

venture capital Raising money and what it does to the product: the funnel that forces hard choices, and what happens without it.

nuclear power Fission as an energy source: what it costs, what it risks, and whether anything else can do the job.

investing Putting money into markets on purpose: what a portfolio is for, whether active management earns its cost, and what money is actually a means to.