If you are genuinely interested in the future of trust, finance, technology, and care about sustainability.... you're probably already an HBAR hodler but if not, it's set to take over.
Check this comment out in two years.
Edit: To me, the main thrust of the article seems to be nothing new. I find bitcoin to be archaic and transactions can be so slow, ETH moreso. Unpredictable fees... etc. Sustainability-wise, though, the point is moot because it's not like BTC will disappear. But sustainable DLT tech can definitely work efficiently - carbon neutral to negative.
https://www.swirlds.com/downloads/SWIRLDS-TR-2016-01.pdf
https://arxiv.org/abs/2303.14848
https://nowpayments.io/blog/hedera-energy-efficiency-and-hba...
https://hedera.com/learning/sustainability/is-crypto-bad-for...