If I could literally relive my childhood, with the knowledge and abilities I have now, I would do the following:
I'd have turned my father in to the police for child abuse the first time he drew blood.
I'd have bugged the principal's office just before the big drug bust of 1972.
I'd have done more homework, and played less of the class clown.
I'd have gone to a private college instead of a state university.
I'd have stayed in woodshop instead of becoming a bando.
I'd have taken more science and math and less music.
I'd have not taken any foreign-language classes.
I'd have tried out for the track team sooner.
There are many more, but most of those involved missed opportunities with girls, and who knows if those would have turned out any differently?
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.