tuning fail

TODO.md

@@ -20,6 +20,10 @@ https://www.tasnimzotder.com/blog/optimizing-game-of-life-algorithm
   the cells anymore.
 - Speed
   https://conwaylife.com/forums/viewtopic.php?f=7&t=3237
+  Look at try-pointers-and-cells branch, we're using pre-calculated
+  neighbor list of pointers to cells, but it's only a liiiiitle bit
+  better :(
+
 
 - Patterns: