OK, thanks. Yes, it is still not quite useable ATM.

But hell, if we let TA aside, as a computer scientist, I cannot help but find it THE answer to blockchain scaling issues/dead end. Someone had to come with something like this (there is not a lot of true mathematical solutions, graph is the only viable one), and it's IOTA, as for now. The vision behind it is great. I will wait for it to mature… Or to fail, but I do not think so.