As always: with your explanation some terms become clearer. I've heard and read about non-expendable tokens before without understanding much. Now it becomes clearer. Really interesting about the Crypto Kitties, the analogy you used to explain better the NFT and the use that can be given to this piece. I must admit that this is a different world for me, but it is interesting and very beneficial. The idea is to read a lot and ask questions when in doubt. Thank you very much, @chekohler ;)