What you aren't taking into account is that the larger you are, the more difficult it is to grow. You can even see this in Apple's growth since 2005 slowly decl

What you aren't taking into account is that the larger you are, the more difficult it is to grow. You can even see this in Apple's growth since 2005 slowly declining. The last couple of years have been absolutely bonkers. 4x-ing from here would be 17x their valuation in 2017. Controlling for inflation, the probability of that happening given their current valuation seems ridiculously low.