Comment by TimPC

Capital gains being delayed is not a direction we want to pursue. There are huge problems with unsellable stock in venture-backed start-ups and other situations where you can end up owning a massively valued asset that you can't sell to pay the taxes on. Said asset could go to zero without you ever realizing money. I don't think people should lose their start-up stock over taxes, or face putting their entire wealth on the line on a gamble the company pays off. Keep in mind it's not unheard of to have stock worth $2+ million for an early employee in a company that goes to zero. Even more relatable to the average person: If your house price goes up too quickly you can be forced to sell to afford paying the capital gains on it.