When I first started this week, I knew that this was the sparse infinite ShadowCluster had always teased, and quickly made a 77a layout I knew could be programmed to completion (but left it alone). I expect most people familiar with the idea of sparse infinites to have this number, or maybe 76a if they managed to find some lucky geometry. To get the 75a though, the key lies in omitting one of the product bonders and building that segment with a nearby bonder instead. From there, it's just a matter of placing necessary glyphs into forced area, and this 75a was born. I imagine 74a is the theory minimum, but could not find a working layout: the debonder and animismus restrict the space too much. The iron suppression here was the savior for that debonder placement, since there was no other way to get the input there within the area. As far as cycles secondary goes, I didn't really search too deep; clean programming was about all I did in that aspect.

also hi shadowcluster (if they can see this)