Black holes may not exist, but fuzzballs might, wild theory suggests

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What if black holes aren't black holes at all, but rather the cosmic equivalent of fuzzy, vibrating balls of string?

Black holes may not exist, but fuzzballs might, wild theory suggests : Read more

 

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The article says near the end, "When black holes collide and merge, they release a tsunami of gravitational waves, which wash across the cosmos, eventually reaching our detectors on Earth. For all the dozens of black hole mergers that we've witnessed so far, the gravitational wave signature is exactly what general relativity predicts black holes to do."

Yes, Einstein GR does make this prediction that now stands tested by LIGO and strings so far, do not. Consider what GR predicted about Mercury's orbit and follow up observations show that GR is true for Mercury too in our solar system (any string stuff here?). Quantum gravity, strings, remain to be shown true and factual in nature.