It's amazing how much you can achieve with a relatively small team of experts. I also believe people have gone "blind" to how much a million is and what it can afford. I mean a million can employ a decent software developer for a decade, and a solo developer can achieve a lot in a decade. I've probably produced about a million LOC in that period in half a dozen languages.

I was curious; the Manhattan Project cost $2 billion (in 1939) and employed 130,000 people (https://en.wikipedia.org/wiki/Manhattan_Project, first paragraph).