Re-incarnation is a fact, many re-incarnate into the pit for the unconscious and ungrateful endlessly while being a tv show for everyone else who left to go do something better. Occasionally someone comes back again and tries to save the lost like @theleapingkoala and buddah and such like

What about previous life memories. Nothing more needing said. Though, The ancient cultures were actually practicing re-incarnation, they werent birthing they were landing. The Egyptians, Tibetens, Chinese, Indians. Infact many wise souls choose to incarnate here again instead of leave. Its not that bad a space.