One could also argue that Bezos already made up his mind and he just needed to find a line of reasoning that supports his decisions. Well, isn't that how science works, when you do experiments and then come up with theories to support the results?
Disproving theories is as big (if not a bigger) part of science as it is to come up with theories that support certain results. After all there could be many such theories but which one is the true one you can only find out by setting up experiments to explicitly make the decision which theories are false and which are not (or at least, less so).
It's also easy for him to say since he was successful. I know a fair number of people who tried "this thing called the internet" at about the same time and had their asses handed to them a few years later. Most don't actually say they regret it, but more than a few were burned badly enough to not try it again.
Most People will not regret being involve in 'the thing called the internet', they may regret other decisions like poorly managing cash flow, not understanding marketing or software or people...
