One of the main things that comes up is that there has to be planning for every possible variant. With my method, that is not precisely true. There are lots of possible variants that simply will not succeed (extinction events). But for all other things, what seems to be missed is that only the variants within a prototype must be accounted. This is different from David's concept and from mainstream evolution in that it doesn't require any prototype to contain the code required to create a different type of prototype. Mainstream evolution requires that their be an origin somewhere that contains all possibilities...