Cryptocurrencies Are a Bubble: John Paulson

The speaker expresses skepticism about cryptocurrencies, describing them as a bubble with no intrinsic value due to their limited supply. They discuss the risks of shorting cryptocurrencies, highlighting the volatility and potential for unlimited downside, unlike the more predictable shorting of subprime bonds.

What does the speaker mean by saying cryptocurrencies are a 'limited supply of nothing'?

What example does the speaker give to illustrate the volatility of Bitcoin?