Ethereum is called ultra-sound money.
It is not something new.It all started on 22nd of January 2021 from Justin Drake.
Bitcoin backers are describing Bitcoin as “sound” money, which means, money that couldn’t suddenly depreciate in value due to its fixed issuance(21M). You can find the definition on Merriam-Webster dictionary.
'Ultra-sound money' doesn't exist as a real term,it was made up because many think that Ethereum will have a decreasing supply.One thing is for sure that many changes will occur to Ethereum. One of these is the Ethereum Improvement Proposal (EIP) 1559.It is a burn mechanism that is already happening and then there is also the transition to Proof Of Stake.
Anyway,this is old stuff.This post is about the site https://ultrasound.money/ for those that do not know it.
It has a ton of information about the burned Ethereum, how much is staked and many many other things.
Just wanted to share my finding.
Thanx.