[With quantum computers] you can calculate how many bits are in the universe, how much energy it takes to flip them, how much energy exists, and use that to rule out lots of things about the universe's history. Anything that takes more bit flips couldn't have happened.
Seth LloydThe amount of information that can be stored by the ultimate laptop, 10 to the 31st bits, is much higher than the 10 to the 10th bits stored on current laptops.
Seth LloydThere are considerable advantages to using many degrees of freedom to store information, stability and controllability being perhaps the most important.
Seth Lloyd