What if 4chan never existed?

The thing is, 4chan is not 2chan's offspring, it's a direct copy, more or less. As long as 2chan exists, 4chan, 8chan, 69chan will be born, and they all will be exactly the same as today's 4chan, seeing how they are all photocopies.

The same argument can't be used for offspring conception, among the millions of sperms that the daddy shot, only one (or more, but not all) will create a genius.