I have a theory, that some coins influence BTC price negatively,
In the past i felt that once XRP goes BULL, it stops BTC BULL
and now, i see once XRP was dumped after the airdrop, BTC went bull again
I don't think that's how it works, it can't be seen from just one factor at the current increase in Bitcoin. Many factors that support at the end of this year and maybe because of this virus one of them. Maybe.