What is Our Future?

Ever think about what would occur in the future? Like for example what if in the past we used to live in Venus but we have no idea now because our memories are completely gone. Another example is that what if in the future we are considerd as creatures and in other plants they are considerd as humans. Also if we lived in another demension in the future but we had no idea we lived in other ones to. It could be possible if you think about it that there is another demension that is what our future or past. Like maybe for us in the future or past the moon was called mars or the sun as jupiter. What if we lived our lives for more that 20 times. Also, what if other people or things are what recreate us. " Human beings must be the key to the meaning of existence." (Artificial Intelligence) What happened in the past is a real mystery.