muzik wrote:Allow me to coin the new term of "silvership" to refer to any greyship that creates a stable agar of density less than 1/2. Silver, if you think of it as a colour, is a pretty light grey, so I think it kind of fits.
Kind of. Grey already comes in plenty of different brightness levels. And some display palettes for CAs have a black background and white cells, and some do the reverse, and LifeViewer and Golly have both options. Seems like specifying a brightness level is just asking for trouble.
muzik wrote:And for greyships that carry periodic agars, how about "shimmership"?
These both look to me like solutions in search of problems. Build a few dozen silverships or shimmerships and get people interested in discussing them using those terms, and then after a few years you'll have a candidate for a term to add to the LifeWiki.
But how do you keep packed flotillas of HWSSes, say, or any other spaceship -- a p2 extensible one, maybe -- from being offered up as "shimmerships"? It would be good to be able to keep the trivial cases out.
muzik wrote:I've been wondering for a pretty long time, could a spacefiller that fills the plane with a p4 1D periodic agar be achieved somehow?
It's not impossible, but it requires some very difficult searches. The period of the puffers you'd be looking for would depend on the spatial period of the agar, I think... and if it's different on the edges from on the top and bottom, you'd need separate successful searches for three separate components -- top, side, and corner, let's say, or top, side, and diagonal edge.