Agreed. A plausible explanation for why the largest companies are tech companies is low marginal cost of replication combined with widespread appeal combined wi

Agreed. A plausible explanation for why the largest companies are tech companies is low marginal cost of replication combined with widespread appeal combined with network effects and IP moat which confers monopoly margins. Other businesses are constrained in a way tech companies will never be (geographical, meat space constraints) and are in legacy industries where decades of competition has eaten away margins. The explanation that the tech CEOs are better (although I'd agree with that statement in general) isn't the best one.