One of the bones of contention in the recent ongoing unpleasantness is the rate for capital gains. Since capital gains involve investing today and taking profit later, the best argument for a lower rate is that inflation accounts for a considerable part of the capital gain.
Eli says, use the chained CPI to inflate the basis so that the difference between the profit and the investment takes inflation into account
That is all
And, oh yes, vote in Eli's climate change story of the year poll