A Jupiter brain is a theoretical computing megastructure the size of a planet. Unlike a matrioshka brain, a Jupiter brain is optimized for minimum signal propagation delay, and so has a compact structure. Power generation and heat dissipation are formidable concerns for a Jupiter brain implementation.
While a rigid solid object the size and mass of a rocky planet or gas giant could not be built using any currently known material, such a structure could be built as a low-density lattice with a mass comparable to a large moon or a small rocky planet but a far larger volume, or as a solid but non-rigid structure with the mass and density of a planet (as long as the internal heat gradient is carefully controlled to prevent convection).
Slashdot Mirror
What are those tracks in the Perseus view linked in the article? An intergalactic dust-swept highway? A slash and a dot?
http://www.uploadgeek.com/share-8FEE_4BD68D73.html
Quoting wikipedia:
Jupiter brain
A Jupiter brain is a theoretical computing megastructure the size of a planet. Unlike a matrioshka brain, a Jupiter brain is optimized for minimum signal propagation delay, and so has a compact structure. Power generation and heat dissipation are formidable concerns for a Jupiter brain implementation.
While a rigid solid object the size and mass of a rocky planet or gas giant could not be built using any currently known material, such a structure could be built as a low-density lattice with a mass comparable to a large moon or a small rocky planet but a far larger volume, or as a solid but non-rigid structure with the mass and density of a planet (as long as the internal heat gradient is carefully controlled to prevent convection).
http://en.wikipedia.org/wiki/Matrioshka_brain