This is the BTC chart since 2012. Those who warned that a higher market cap would result in a slower nominal growth going forward were, obviously, correct.
This new growth channel still technically allows for $150,000 before 2022, but also for prices as low as $20,000. Eventually, (maybe in 10+ years) a flat curve will likely develop signaling BTC's readiness to be used as a stable global currency. But the road will be long and governments are only intensifying their crackdown on currencies out of their control. But we will win....or die in glory.