I hate “if onlys.” Especially when it comes from investors. I don't know how many times I've heard somebody say, “If only I had invested in Google early on.”
Just stop it. Even Google's founders, Larry Page and Sergey Brin, didn't know how big Google would become. Nobody did.
If you're going to look back, how about trying to benefit from hindsight? After all, we can see everything Google did. How did Google become so successful?
Wouldn't you like to know? I would.