I don't think so if the ethereum is the future of crypto. Because as I can see now ethereum was not in the half price of bitcoin. But there's a possibility I think it takes time to happen it. Maybe it depends to the fluctuation of both coins in the market.
The market cap of ETH is more than 50% of bitcoin now.
LOL. What are you talking about? It is clearly that Bitcoin marketcap is higher than ethereum. Take a look again please. Do not try to make yourself as a fool here
Bitcoin market cap is currently at $39.8 billion USD
Ethereum market cap is $17.4 billion USD
So the market cap of Ethereum is 43.7% of Bitcoin. Not that far off from your friend's approximation above.