I bet the probability that BTC price exceeds its 2021 and 2024/2025 ATH level in real terms is very small because it was/is due to the rare coincidence of two factors:
1)BTC extremely high reputation relative to other cryptocurrencies "The first, the only, the unique" and 2)very strong stock markets: AI boom that is similar to dot com boom with extremely high P/E ratios (stock market has a strong correlation with BTC price).
BTC ATH real price level equals 30-40 oz of gold, a small 1-room flat in my home town Tallinn or 4 years (average) salary.
It's not entirely clear what you mean, it seems like you're trying to highlight the price increase from 2021 to 2025.
Bitcoin price was $69,000 at the end of 2021 and $126,000 in 2025, which was the maximum Bitcoin price ever. In 2025, Bitcoin price reached $126,000, but in the future we will see Bitcoin price reach an all-time ATH, which will increase the value much more than the ATH of 2025, but this whole process needs a long time. It is better to buy Bitcoin with confidence and patience and hold it for a long time, which will help the investor to profit from Bitcoin in the long term.