Despite the fact that in every enterprise the cost to run the enterprise has to be lowered as much as possible, and a system that scale up in cost isn't a solution that anyone would like to adopt, my point here isn't about arguing if the mining process is good or not (and tbh I know it's necessary to secure the network), but about collecting the various mining alghrithm available, not necessarily for bitcoin itself.

Moreover i'd like to know if someone ever attempted to do some kind of mix of alghoritms where you don't need to find the zeores required, using just scrypt, or sha or whatever, but a mix of those (so a miner couldn't run just a CPU miner, or a GPU miner, but need both or even more systems). I'm not talking about dual alghos coins, because afaik those are using 2 separate alghoritms that generate blocks on alternate rates (e.g. on huntercoin/namecoin sha and scrypt are set to generate a block every 2 minutes, but it's perceived as a coin that generate a block every minute

I think that having a wide range of mining alghoritms ideas could be beneficial, if not for bitcoin, at least for a generic blockchain technology