Well, if its possible for protons and bucky balls, then its possible for rats.
However, how do you isolate a rat from its surrounds.
As Zeilinger the buckyball man says "The border between classical and quantum phenomena is just a matter of money"
Obviously lots of it.
Now the problem with quantum computers is the maintenance of coherence within the system.
According to Wolfram, the inventor of the programming language Mathematica, the program required to create the universe is quite simple and only consists of a few lines of machine code.
Run this little program and repeat for 14 billion years. this program would be similar to a "cellular automaton"
To get back to Einstein.
He always said that the preferred theory was the one that resulted in the simplest mathematical proof.
The shortcoming of equation based physics is its inability to cope with complexity.
Look at the sacrifices made in string theory to reduce the mathematical complexities.
All these fantastic theories, a product of the laboratory of the mind waiting for empirical validation. May take a little time.
A quote from Eddington " We have found a strange footprint on the shores of the unknown. We have devised profound theories, one after the other to account for its origin. At last we have succeeded in reconstructing the creature that made the footprint. And lo, it is our own"
Yes it is for the younger generation to resolve these issues, but I see no reason for the older generation to not die trying.