A nairaland user made a post about how his 4 years old daughter portrays every trait that she has once lived in the past and probably came back in another life. He said he noticed that through their conversation. The things she talked about and her wit when she gives answers to questions.

Several users commented and made mention of reincarnation. Others gave recommendation of how he should document the moment and show her in the future as she might lose the memory of all of that when she grows older. Some highly religious folks recommended he takes her for deliverance. Others said things totally out of point which I believe the original poster (OP) used his discretion. Not to forget the usual nairaland tribal warlords. They had a feast in the comment section trolling words.

This got me thinking really deep over the past few days. I question my existence. How I got here to this world. I had so many doubts if 'reincarnation' is just another myth. To make things more difficult, I have seen an American dystopian science fiction western television series created by Jonathan Nolan and Lisa Joy that first aired on October 2, 2016, on HBO titled WESTWORLD. It took me growing up to believe humans are not some sort of code written by programmers. Lol... Don't mind how I think please. I literally live in my head even now as an adult. It's so safe up there. Away from the noise and chaos in this world, I find solace living in my head.
 
If you're wondering what reincarnation is all about; it is the rebirth of the aspect of an individual that persists after bodily death—whether it be consciousness, mind, the soul, or some other entity—in one or more successive existences. It is also called transmigration or metempsychosis, in religion and philosophy.
Depending upon the tradition, these existences may be human, animal, spiritual, or, in some instances, vegetable. While belief in reincarnation is most characteristic of South Asian and East Asian traditions, it also appears in the religious and philosophical thought of local religions, in some ancient Middle Eastern religions (e.g., the Greek Orphic mystery, or salvation, religion), Manichaeism, and gnosticism, as well as in such modern religious movements as theosophy.

I was at home the last weekend and I had a chat with my dad. He is such a sweet man full of knowledge. I asked him question to know his understanding of 'reincarnation'. He's lived through the 70s and I believed there's one or two events that have happened in the past to confirm its existence that he knows. 
He told me about my younger sister. The time she was little, about 2 to 3 years old, she wouldn't agree to step her feet on the floor. She had this phobic for the earth as if it'd eat her up. Like everywhere is filled with germs and she'd contact them once her feet touch the ground. He said that was the opposite life a family relation that died years ago lived. While she was alive, she lived carefree and would say 'she'd come out in another life a different person that the earth would irritate her if she'd have to walk on it even with shoes.
It was believed she reincarnated into my younger sister.

Often time people would say: "if I come back to this life again, I won't be poor again'. Then I wondered that people like DJ Cuppy and other rich kids out there with billionaire parents have lived a poor life in the past and maybe reincarnated to the life they wished for. Same way with poor people. Maybe someone that have lived very rich in the past that saw the whole madness their wealth brought to them and wished to live a normal life in their next life. Not an excuse to remain poor.   Most of the rich people we have today worked their way up from nothing.

In all my inquisitive mind is saying is that; is it fair to have another person's past life transmigrated into some else's? I mean, everyone deserves something special and unique, right? What do you think?