Just because we know there cannot be a heaven or a hell, this does not leave reincarnation as the unavoidable alternative. Yes, but the matter and energy which make up an organism's consciousness is converted upon death. The structures and energy which allow consciousness are converted to structures and energy which do not allow consciousness. If I take a sledge hammer to my computer, I will actually be adding energy to the total system, but this will not improve its ability to perform computing functions. This is because the structure is crucial to its ability to perform.
Some people remember there past lives in great detail thats accurate.
If we can verify that their details are accurate, this means that such information is part of the publicly available record. Linguist Sarah Thomason performed linguistic analysis on tapes of eleven channelers. She found that all had inconsistent and implausible accents or dialects, inappropriate for the time and place claimed by the alleged source. I agree that people should be entitled to their own opinions, but I do not think any more about reincarnation than I do about Heaven and Hell. This is because I have been given no reasons for believing either exist.