I see them [computers] as increasing the need for nuclear power no end.
After the Second World War, your average home still relied on coal for heating and cooking. Apart from that, unless you were wealthy and had television, there were very few electronic devices around the house. Now, in the average home there are several computers,
mobile phones, blu-ray/DVD players, microwaves etc.
The elephant in the room after concurrency, is where on earth we get the power to provide for a computer with 1000 cores? Yes, you will always have some great Citizens, that will have a windmill that powers their computer, but there is a severe price
to pay for all this processing power, I'm not sure people quite realise it yet!
again I find Aesop's Fables appropriate;
A number of Flies were attracted to a jar of honey which had been overturned in a housekeeper's room, and placing their feet in it, ate greedily. Their feet, however, became so smeared with the honey that they could not use their wings, nor release themselves,
and were suffocated. Just as they were expiring, they exclaimed, "O foolish creatures that we are, for the sake of a little pleasure we have destroyed ourselves."