Original sentence: Based on these or similar theories, some philosophies say that because life was entirely coincidental, one can't expect life to have any significant meaning at all.Some scientific theories suggest that life on Earth was created when a lightning bolt, comet or meteor impact, or other "accidental" event caused a group of organic compounds to bind together forming a primitive cell, which was then able to reproduce and eventually evolve into higher life forms
Edited sentence: Science tells us that life on earth was created by a lightning bolt that electrified a mix of molecules and turned them into a very primitive cell.Since everything which has got to do with life is based on accidental circumstances, there is reason to believe that life has no reason at all, from a scientific point of view.The elements these molecules consisted of, (by us named "organic") are the only elements that could create such complex objects.This cell was capable of copying itself, and by that, life had started.Thus, life started with a coincidence, and also developed by coincidences, and it will continue this way, unless we fumble with genes too much