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

I think not everyone is aware of bitcoin yet. It's true that most people have heard about bitcoin, however, not everyone who knows it uses or invested on it. Some are aware that bitcoin is profitable and it has a lot of potential. However, not everyone are investing on it because they are still skeptical about it. I also believed that bitcoin is a good investment when I first heard it 2013, however, I didn't invest because I never thought that it would last this long.