Thanks, the utility of April was a big motivator as well, I used it in my Bloxl project (https://vimeo.com/935602359). Still, one of the reasons I focused on it as much as I did was because I knew that if I couldn't execute such a project well, I would have no chance to realize Seed. Implementing APL is a big undertaking but nonetheless one that has a clearly defined and testable goal. Seed is something with no reference to base a design off of, an objective toward which many paths appear to lead but only a few have the potential to fulfill in the best way. The challenge of such a project is on a completely different level from an APL compiler.