> having massive wealth and valuing it in dollars may seem nonsensical, and at some level it is, yet it is the way that everybody operates.
If this was true, then why is nobody talking about imposing a tax on the market capitalization of corporations? Think about how much revenue you can raise by levying a 1% tax on Microsoft's market cap. But this is absurd, because the market cap doesn't represent actual money, it represents the theoretical value on all shares outstanding.
> In the rest of the economy, there are few VCs, and for a lot of profitable, but smaller businesses, capital is super hard to come by.
This is manifestly untrue. In the last 10 years of near-negative interest rates and quantitative easing, capital has been almost too easy to come by. Everyone and their mother is lending money.
> A person who sees a future in, for example, electrification retrofits of homes and has several good ideas about how to make it cheaper and more economically efficient, is going to have a really hard tome getting going.
Not true at all. Most banks and credit unions would extend dirt cheap loans. We are arguably over-leveraged on these kinds of loans.
> I don't really hear many people talking about friends, family, and fools rounds these days because the game has changed. However if we had more people that could use their knowledge of the local lay of the land to invest more wisely, we'd have far greater wealth generation.
The reason for this has everything to do with globalization and 21st century communications technology. It is no longer sufficient to be the best electrician in your neighborhood, you now need to be the best electrician in the country or perhaps even the world, given how easy it is to reach consumers today.
To give you a sense for how the scale of globalization has made it difficult to compete locally, consider how easy it is for a new business to reach every American today. There are 330 million people in America. You just need to provide $3 of value ONE TIME to every American, and you become a billionaire. Likewise, on a global scale, there are 7.8 billion people in the world. If you can get 1% of them to pay you a penny once a year, you're making $780k/year.
"Inequality" is inevitable in this world, but again the wealth isn't zero-sum. We're not remotely close to "central planning", because the wealthiest person on the planet (on paper) only represents ~0.5% of the annual GDP of the US alone. And that's not even an apples-to-apples comparison because the paper wealth is accumulated over years, whereas the GDP occurs every year. The accumulation of Bezos' wealth over the last 20 years is about 0.05% of the accumulated gross-product of the US, alone.