[iki23]

"Very rarely is there simply not some kind of existing solution."

Yep, when you talk about known problems. Still often both the problem and solution (which is just another view of problem) lie just outside current scope of people imagination, and are only found by prospective minds when the way is open (other conditions met).

There was not simply some kind of existing solution for Internet 50 years ago.

[lehmannro]

If you solve an unknown problem (ie. an issue nobody is concerned about) you will have a very hard time to market it and show people how they need it.

There were solutions for this Internet thing 50 years ago, even if it's hardly imaginable today. If the problem you are speaking about is communication we had that 2000 years ago, in form of smoke signals. It sucked and was dog slow but it was not an unknown problem.