This is a much better argument than your original one, but it's still off. Is there 7 million of any man-made things that are worth a billion dollars? I would argue that if something is worth a billion dollars, it's necessarily rare. It sounds like you mean to say "bright" ideas rather than billion dollar ideas.
But besides that, it takes more than sheer numbers to make the argument you're making. Seven hundred million ideas is a lot, but it's nothing compared to the 6.3 billion bad ideas out there.
You are correct in saying that it's difficult to distinguish good ideas from bad ideas. So people tend to get bitten by one of the many bad ideas out there and then throw their hands in the air and say "Ideas are worthless!"
Personally, I think that good ideas take far, far more work and intelligence than you're acknowledging. Even if everyone can have good ideas, and good ideas are common, it takes work to develop a good idea into one that is worth executing.
But besides that, it takes more than sheer numbers to make the argument you're making. Seven hundred million ideas is a lot, but it's nothing compared to the 6.3 billion bad ideas out there.
You are correct in saying that it's difficult to distinguish good ideas from bad ideas. So people tend to get bitten by one of the many bad ideas out there and then throw their hands in the air and say "Ideas are worthless!"
Personally, I think that good ideas take far, far more work and intelligence than you're acknowledging. Even if everyone can have good ideas, and good ideas are common, it takes work to develop a good idea into one that is worth executing.