Question regarding a contradiction in conservation laws

AI Thread Summary
The discussion highlights a contradiction in conservation laws related to the universe's expansion. It notes that while the universe is expanding and will continue to do so indefinitely, quantum theory suggests that a vacuum's energy density should exceed its potential well due to the uncertainty principle. As the universe expands, it is argued that energy density decreases over time, leading to a scenario where there may not be enough energy to fill the expanding space. This raises questions about the validity of the uncertainty principle, the conservation of energy, or the possibility that the universe's expansion could halt. The complexities of energy in non-stationary spacetime metrics, such as the FLRW metric, are also acknowledged.
zeromodz
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We all know that the universe is expanding and for that matter accelerating. Science is now starting to realize that the universe will expand forever and the big crunch will never occur due to recent data of a supernova. My point to all this is, quantum theory states that a vacuum must always have more energy density than its potential well due to the uncertainty principle. If the universe is expanding, it loses energy density with time. So eventually there will be too much space and the energy total energy in the universe will not be enough to cover all of space. So either, the uncertainty principle will fail, the conservation of energy will fail, or the universe must stop expanding. What do you think?
 
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