DOT is having a hard time trying to go up again after falling from $55 a couple of months ago, and we can see many pressure downwards, towards the $22 support that's been holding for quite some time. If BTC goes down again below 36k/38k expect this support to be broken as the overwhelming pressure downwards can't be sustained anymore and we can see DOT go down to $10.
If DOT is already down to $10, I expect BTC is also already down to 28K/30K, which can signal a good long entry for both in my opinion, especially if you buy leverages.