User blog comment:Deedlit11/Okay, more Turing machines/@comment-10429372-20130927154129/@comment-5529393-20131008064955

Your TM is interesting - it looks like you have state 14 going to state b, so you can go back to the starting 5-state TM. Can you explain the TM in greater detail? Will the larger 5-state and 6-state TM's not work with this construction?

Your 5-state TM actually seems rather similar to my expandal growth rate machine, so I wonder if there is some way to combine them. Clearly we would have to do something very clever to get down to 20 states!