by Elio — I don't get tired of sym­bioses, some­thing I at­tribute to the Power Law of Sym­bio­sis I just made up: In­ter­act­ing genomes are more in­ter­est­ing than sin­gle ones by the nth power of their num­bers, where n is a mat­ter of per­sonal pref­er­ence. Here I re­late two ex­am­ples that should make…