True SoreGums, I was also aware of there being a possibility of a more efficient miner, which also could be kept private, at least for a while.
The team who made x11 is the Darkcoin team, which has been getting some popularity lately.
To me it sounds like it shouldn't be the big issue, as x11 is not made in a way that actually should be able to utilize a GPU more than ~50 %.
I found this where a few people discuess the issue about optimized miners:
https://darkcointalk.org/threads/why-does-x11-run-cooler.178/I have no idea whether it's possible to make hardware which would be able to be fully utilized, but a lot seems possible these days...
There is an article about x11 here, which seems to have kind of the same beliefs as me:
http://www.cryptocoinsnews.com/news/pros-cons-x11-algorithm/2014/04/10Also, interesting read from an interview with the Darkcoin x11 developer here:
http://coinchomp.com/2014/05/09/interview-tale-of-two-halves-the-most-secure-algorithm-1/Remember part 2:
http://coinchomp.com/2014/05/09/interview-tale-of-two-halves-the-most-secure-algorithm-2/So, this seems like a slight concern to me. Every kind of algorithm will likely be hit by ASICs someday, if there is enough money involved.
Should it ever be an issue for us with x11, we could fork the coin by a new vote, of which it would require a majority of ASIC owners to vote no.
It's worth taking into consideration that a fork of a large coin could cause a split in community with 2 forks being used, such as with Litecoin, which was forked by some due to scrypt ASICs.
The reason I prefer x11 is because of the algorithms I know of, this seems very appealing right now, and I think the worry about ASIC for this is rather long term, so we would a least be able to avoid ASICs for a while. Especially taking into account we are already vulnerable to ASICs at this very moment.