Dark energy from supermassive black holes? Physicists spar over radical idea
Here&#x27;s a question I&#x27;m not even remotely qualified to ask: could it be that supermassive black holes cause a contraction of local spacetime in a way that gives the impression that local space is static while distant space expands?<p>I think this mechanism would be largely indistinguishable from classic hubble expansion, at least on local scales.