I will say that for their notion of convergence to work the digital ecosphere would have to incorporate mutability. Right now the name of the game is to minimize error and get the same bits out as were put in, yes? Genotypic expression has error correcting systems, but the biological emphasis is on reproduction over error correction of genes aka Evolution.
Digital systems are not designed to support evolution processes. Even GAs require a predefined fitness function. Thus its still a no-go on convergence wrt reproduction and survival being dictated by environmental pressure.
Makes for an interesting read tho!
