Based on the process outlined in the article, it is akin to taking an existing electronics product and then duplicating it. You don't really need to understand

Based on the process outlined in the article, it is akin to taking an existing electronics product and then duplicating it. You don't really need to understand Ohms law or how transistors work in order to produce something that works like the original. The article claims that the simulation behaves in many ways like a real brain, so even if they made some mistakes along the way, it is still incredibly fascinating.