For example, $13.8k is like that, ever since we reached ATH at $20k and dropped under it, we haven't moved above $14k as far as I know, 2019 was $13.8k as well and maybe in some rare places it did moved beyond $14k but the average was around $13.6k or so at peak times and only went slightly above for a small time as well.
It means there is a great chance that bitcoin can't go beyond that level not because anything technical or business related, it is not going above that because it hasn't been above that for a long long time and people are not sure if it could even do that anymore so they end up selling before it reaches there.
Right now we are close at it again with a price of 13750 and so far there has been only one serious attempt at surpassing that price which was immediately rejected.