If things were so fragile that accidents could be heard from here potentially at millions of light years away, it would be the kind of feature that could uninve

If things were so fragile that accidents could be heard from here potentially at millions of light years away, it would be the kind of feature that could uninvent itself destroying the civilizations using it and the ones close enough to them. A good enough alternative explanation of the Fermi paradox or a reason for having a dark forest universe.