What do you think your "God" really is?

Some guy who just popped into existence out of nowhere?

How likely is that compared to intentional/unintentional "life seeding". In a crude way...we're doing it ourselves. Probes sent to other planets, Mars for instance, are COVERED with bacteria and microbes, we've "seeded" Mars with life, whether it holds on and survives is the question.

Don't be so narrow in your thinking. It's much more likely than the religious stories. And STOP listening to people who just want 10% from you!