Or any other alt coin for that matter? I'm wondering if and how it would damage/tarnish Bitcoin's reputation as the Gold standard of all cryptos. I believe it may also affect how institutions view bitcoin, and it may even affect the idea of digital scarcity. No longer can we assume that bitcoin (or its usurper) will remain #1 forever, so how can you imagine it as a safe long term store of value or preserver of wealth? Is the idea of true digital scarcity threatened if bitcoin loses it's #1 rank?
For example, I imagine it would be like silver flipping gold's market cap, (which is practically unthinkable) however, this event would forever alter how gold is perceived, especially by new potential investors.
The fact that ETH has no total supply and even its founder doesn't really know how much ETH is in circulation, then the idea of it surpassing BTC is just a dream. Institutions and even countries support BTC not ETH due to BTC dominant
decentralised traits. However, if this happens, it will really affects how people see BTC. It would change what the criterias for digital gold will be.