Final ATH "For Now"
we knew that after the ATH of 2017 , here comes ATH of 2021 , meaning in the next 4 years we will be seeing another ATH and this thread needs editing when that time comes .
Its final all-time-high level? Really? 
I respect your opinion of course. But I must indicate that this will not be the final all-time-high level for Bitcoin. Because there is no reason for this too. Bitcoin price has no upper limit to reach. Its future is just wide open. And the FUD you are trying to indicate will not work. People should understand this already. As long as people continue to demand Bitcoin a lot, there is no way that the price will just stop breaking new records. The price is highly depending on the demand in the end.
let us not be exaggerated because OP means for the mean time this is the Final ATH but ofcourse there are many to come. I respect your opinion of course. But I must indicate that this will not be the final all-time-high level for Bitcoin. Because there is no reason for this too. Bitcoin price has no upper limit to reach. Its future is just wide open. And the FUD you are trying to indicate will not work. People should understand this already. As long as people continue to demand Bitcoin a lot, there is no way that the price will just stop breaking new records. The price is highly depending on the demand in the end.