All outsized successes look like low-hanging fruit with the benefit of hindsight. If you cherry-pick the biggest business success in any 20 year span throughout the industrial/information ages, I’m sure you will find the initial path to success is always gone by the end of that span. That implies it those successes are always low-hanging fruit. If Google strikes you as moreso, I would suggest that’s only because of the novelty and eventual dominance of the web to everyday life which was not a forgone conclusion.