Except for the bull peak in 2011, the bull peaks of Bitcoin in 2013, 2017, and 2021 all highly coincide with the cyclical peak of the copper-gold ratio in terms of time.
Considering that the current copper-gold ratio is still at a relatively low position, this may imply that the possibility of Bitcoin reaching a bull market until the end of 2026 or even into 2027 cannot be ruled out.