A social and/or notice board and is not so much for discussing Grahams work, or related topics as covered by the other boards, but more like a place where people can share other things.
Heat is the culprit and as the size of the components get smaller and more complex (micro chips) the more the heat effects the stability and life of the component. I know some of the systems you are describing use liquid nitrogen for cooling, that alone indicates heat as an issue with performance of the components. I am quite sure future engineers will find a mineral that heat has no effect on and electronic component performance will go through the roof. To give an example of heat in electronic components, an amateur radio operator friend uses a 1000 watt transmitter when in operation it heats his radio room. LOL Who knows what's around the corner micro chips. Cheers