i dont think will go 5k or even 8k and hopefully will be around 9k -10k for two weeks than we can trade and make some profit from altcoins.
there are many news about bitcoin and many new investor are interested to bitcoin so this price is still so cheap when you know there will be just 21million btc. (currently 16.7 m )
HODL btc or buy rigth now eth and POWR .
Since that you touch the topic of supply you are indeed right only that I imagine that the amount available should really be lower,because I guess there must be some lost others frozen,etc.,I do not know the actual percentage of what I speak but who knows if that is a thing for or against the price,but I think it's a factor that should also be considered,as I see BTC has 8 decimals,but I wonder if some day they decide to add more decimals and the effect that could bring to it.