All systems are ultimately vulnerable, period; comet strikes, bloating sun, heat death.  That anything operates even a little well for even just a little while is the miracle we call this universe.  We are spoiled by the illusion of stability.  Still, Bitcoin appears to be going along sort of ok for now; I will not withdraw my investment yet.

If there is a malevolent entity behind Bitcoin then please be advised that you aren't getting more than you've already got from me so please end the charade now.  Hmm, perhaps it hopes to ensnare more unwitting fools.  Bummer.

Then again if there isn't then maybe Bitcoin's shortcomings can be patched up before they are exploited.  Hmm, I think I will know when there's a problem because I won't be able to extract value.

ASIC-resistant PoW seems like a delightful idea to me.  Is memory latency the barrier to stand upon for the ages?  Hmm, that sounds familiar.