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The two galaxies are presently a Vote For Mariners Shirt two million light years, give or take, from each other. They are expected to collide, and eventually merge, several billion years from now. Don’t worry, it won’t affect us much. For starters, we won’t be around. The Earth will be a dead world by then, with the Sun near the end of its life as a main sequence star. But even if that weren’t the case, stars are so small compared to the distances between them, no individual solar systems are expected to collide as this merger takes place. It cannot be excluded with certainty of course, but it is unlikely that any star during the merger event will come much closer to the Sun than our nearest stellar neighbors are at present, i.e., never approaching our Sun closer than a couple of light years.
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For example, we probably need to reach the Design billy Strings Jacobs Pavilion Cleveland, OH 2023 Poster Shirt where clay-lined geothermal vents are forming natural fatty-acid vesicles that probably formed the first proto-cells. We would probably have needed several ice ages to pass as we have found that some of the chemical reactions that probably were required for abiogenesis work best under freezing conditions. Once that happened however, the evolutionary processes have been relentless and we see their tracks in the history of life on Earth From there, the time it took to get from simple, single-celled life to complex human life is a function of mutation rate, the actual mutations that happen to have happened, and which life forms survived. That takes time and pretty well accounts for the observed times given known rates of these things (which isn’t constant over time).
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