Earlier quoted context omitted.
I had a very different takeaway from Piketty's book. Namely, that inflation (primarily hyper inflation) has been the only force to reduce income inequality. For example, Jeff Bezos is much more affected than I am if the government decides to give everyone a $1B. Thus, governments looking to end income inequality shouldn't be afraid of high inflation.
Inflation IS a tax on wealth. When done intentionally (by printing money), it’s called seigniorage.
Only for wealth stored as currency. For debts, inflation effectively transfers money from lenders to borrowers by reducing the value of debts. Other things, for example stocks and real estate, are only nominally affected by inflation.