by Elio — Can one turn an or­gan­ism into pho­to­syn­the­sizer in one or two sim­ple steps? That seems un­likely, as pho­to­syn­the­sis as we know it de­vel­oped over a long time via a se­ries of com­plex and so­phis­ti­cated evo­lu­tion­ary events. Just mak­ing chloro­phyll leave alone the rest of the ma­chin­ery, took much do­ing.