I'm curious about a system where capital gains are 100% for the first... I don't know, let's say a month. Then you ramp down over the course of the next year u

I'm curious about a system where capital gains are 100% for the first... I don't know, let's say a month. Then you ramp down over the course of the next year until it matches the regular income tax rate. I'm less concerned about the specific time periods than I am about the idea that it would be beneficial to society to have our financial systems encourage long-term thinking.