There is no single person on earth who haven't heard of bitcoin.
Everyone is talking about it, it's all over the news, everyone is buying it, price is dramatically increasing.
It's like gold rush back in 1848.
So why aren't we calling this bitcoin rush?
You know, in 20 years from now it would be funny to say - yeah, i bought/mined bitcoin during bitcoin rush back in 2017

Not yet and its far from your so called fever. There are still many people do not know and against bitcoin. And those against bitcoin are mostly are just spectators and haters. But as the day passes by, many people are continue to involve in crypto currency, thats a good sign