If Hawking and Hertog are successful, they would provide fresh theoretical underpinning for cosmic observations that have not yet been confirmed — as Hawking notes in his post. The scientists behind the BICEP2 experiment reported seeing evidence of primordial gravitational waves last year, but they had to pull back from that claim after other researchers said the readings could have been due to the polarizing effect of galactic dust rather than the aftershocks of the big bang.
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