Someone posted on Reddit asking how Safecoin works

https://www.reddit.com/r/CryptoCurrency/comments/6gybnh/can_someone_explain_how_maidsafes_safe_coin_works/

I read somewhere they are the first crypto to not be blockchain based.
Apparently it works on something Maidsafe are calling proof of resource.
I have read a lot of their documentation and watched some of the
videos. But I just can’t seem to wrap my head around it. Can someone
here give me like an ELI5 version?