You can't just equate Minsky's 'Ponzi Finance' with a 'Ponzi Scheme' just because they both have the word 'Ponzi' in them. Minsky used the idea of a Ponzi scheme in creating his own technical term to describe speculative borrowing.
Also, Minsky's theory of financial instability doesn't apply to all bubbles, it's a theory concerned with financial instability as a result of increasingly speculative debt and borrowing. You can have a bubble without debt.
Also, Minsky's theory of financial instability doesn't apply to all bubbles, it's a theory concerned with financial instability as a result of increasingly speculative debt and borrowing. You can have a bubble without debt.