Hi, I'm back with an update.
The 200k btc milestone (450% up from today's prices), will most-likely be between this year (2021) and 2023. Looking at the current linear trends on a logarithmic price scale.
Disclaimer: humans find it hard to believe and understand logarithmic scales. Our brains mainly think in linear scales and trends. However, I think with bitcoin a logarithmic scale is much more fitting the historical data.