I saw that video not too long ago and i've been very facinated about neural networks and implementing them into my 2D game engine. I tried to create a smart chat bot. But the problem was I used text files to organize the data, and I still havent found a reliable/efficent way to store the data. I could make the bot read sentences and understand them (to a point) but i couldent make it form them. (It could only talk about pizza because that was what i had taught it) But i gave up due to the complexity