This tweetstorm gets it right. Cyptocurrencies are all comp sci projects that escaped the lab.
I see few of the promises of this “currencies” coming true. It does not scale. It consumes hideous amounts of power.
Your crypto wallets will, trust me, be used against you.
h/t to Aaron Parecki via https://aaronparecki.com/2021/02/14/24/bitcoin