Real reason 10 x 4 works is because every day you lose an hour of focus at the beginning and end of the day. Typical work week 6 x 5 = 30hrs. 8x4 work week =

Real reason 10 x 4 works is because every day you lose an hour of focus at the beginning and end of the day. Typical work week 6 x 5 = 30hrs. 8x4 work week = 32 hrs. Longer periods for developers to hit technical strides or remain in flow.