My model to calculate this target is simple.
Regarding the timelines between each ATH they are roughly the same so no need to change that value of around 50 months between each all time high.
- From 2013 all time highs to 2017's there was a 1500% increase.
- From 2017 ATHs to 2021's there was a 300% increase.
- Considering the percentage of reduction from ATH to ATH on a logarithmic scale and Bitcoin's scarce nature then I guess that the next increase in price should be about 80% from last ATH. So 70k + 80% = 126k
Regarding the timelines between each ATH they are roughly the same so no need to change that value of around 50 months between each all time high.