Here, a second time, I point to this measured exchange of gravitational waves for photonic waves. If photons come from gravity, can photons end as gravity; and

Here, a second time, I point to this measured exchange of gravitational waves for photonic waves. If photons come from gravity, can photons end as gravity; and then do they have an infinite lifetime? https://news.ycombinator.com/item?id=40090332 https://news.ycombinator.com/item?id=40090332