In reply to Eric Walker's message of Sun, 28 Jan 2018 11:26:56 -0700:
>On Fri, Jan 26, 2018 at 3:58 PM, <mix...@bigpond.com> wrote:
>Below: The conversion of matter into energy causes spacetime, and thus the
>> universe, to expand, since light has inertial but no gravitational mass.
>Note that this sets up the weird situation of photons being influenced by
>gravity (e.g., gravitational lensing, the Schwarzschild radius of a black
>hole), but not having a reciprocal influence in return.
...which would make sense if light simply followed the curvature of space.
Robin van Spaandonk
local asymmetry = temporary success