https://www.bloomberg.com/news/features/2021-03-08/are-spacs-a-good-investment-inside-the-stock-market-s-looming-spac-bubble
https://www.bloomberg.com/news/articles/2021-03-09/bitcoin-has-zero-intrinsic-value-some-people-are-ok-with-that
https://www.project-syndicate.org/commentary/cryptocurrencies-like-bitcoin-will-not-replace-fiat-currencies-by-jim-o-neill-2021-03
The sudden rise of "special purpose acquisitions companies" and cryptocurrencies speaks less to the virtues of these vehicles than to the excesses of the current bull market. In the long term, these assets will mostly fall into the same category as speculative "growth stocks" today.
Coinbase Is a $100 Billion Crypto Cult
https://www.bloomberg.com/opinion/articles/2021-03-02/coinbase-ipo-coin-the-crypto-exchange-is-a-100-billion-cult
“Bitcoin is an investment cult, but at some point you have to leave the cult, making you an apostate. Central to this religion is the concept of “HODL” — never selling your Bitcoin. I can think of a number of reasons why Bitcoin could go down—even to zero—and I prefer not to experience that trip with my investments. There is no doubt in my mind that digital money is the future, but it may or may not involve Bitcoin. That would be bad for a lot of Bitcoin investors and for Coinbase”.
How Bitcoin's vast energy use could burst its bubble
https://www.bbc.com/news/science-environment-56215787