Comment by bausson

Well, looking at the video, 11mn in, i see a weird system simplification: * 6 = 6a + 7h + i * 4 = 4a + 5h + i

get "reduced" to: * 1 = a + 1.16h + i * 1 = a + 1.25h + i

I wonder why it isn't i/6 and i/4... basic mistake or I missed something?