I can't say it is a full form.
It didn't even go back there.
Unlike the 12k-13k mark it lasted for months before it goes back down.
20k lasted for what? Days?
I won't expect too much right now if I were you. You can see in this forum, the situation.
There are more expectations for atcoins rather than bitcoin even if it just went after a halving.
Too much expectation can lead to disappointments despite that altcoins dont have the better chance to surge in price than bitcoin because most crypto investors trusted mainly in Bitcoin and those that missed the previous bitcoin halving growth in price wont dare to choose altcoin now.