Edit: Changed title to be more accurate.
Also here is the summary from Wikipedia on what Post-scarcity means:
Post-scarcity is a theoretical economic situation in which most goods can be produced in great abundance with minimal human labor needed, so that they become available to all very cheaply or even freely. Post-scarcity does not mean that scarcity has been eliminated for all goods and services but that all people can easily have their basic survival needs met along with some significant proportion of their desires for goods and services. Writers on the topic often emphasize that some commodities will remain scarce in a post-scarcity society.
Firstly, capitalism isn’t going to just “poof” away just because there are more resources available. The rich will just hold them back to create artificial scarcity - like is done with diamonds.
Secondly, even discounting that, there are plenty of resources that are genuinely scarce no matter how much money you have to throw at the problem.
But if you’re referring to just the scarcity of information - then you’re still not quite right as not all that information out there is good information - a lot of it is misinformation (i.e. propaganda, etc.)…
And even that discounts the fact that for many people, they don’t have the tools/capability to access the information, or simply can’t access the information full stop (I.e. due to censorship, etc.).