Sharing a little.
Don't know what is you might think about this videos but I found it easy to understand, specially to younger people.
https://www.youtube.com/watch?v=FSmdSw9eEIA
https://www.youtube.com/watch?v=FSmdSw9eEIA
8 dimensional model of the universe
https://www.ted.com/talks/garrett_lisi_on_his_theory_of_everything/transcript