Evolution Is Slow, Is It Going to Take Millions of Years?

I don't think it necessarily takes all that long because we're talking about chemistry mostly. We get through at the end of that two billion year period of just bacteria, we get to what's called the great oxidation event. And then after that, it kind of gets back into a stasis that's called the boring billion very often. So in this time, the complex eukaryotic cell arose. There arose four billion years ago. But if you take the eukaryotes out of the picture, bacteria just did four billion years as a flat line. They didn't change at all and are KA well-represented on our planet.

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