(I'm not an astrophysicist). They possibly are referring to the initial age of the universe times the speed of light (13.8 billion light-years), as if it was st

(I'm not an astrophysicist). They possibly are referring to the initial age of the universe times the speed of light (13.8 billion light-years), as if it was static. Like you infer, "[...] stuff is everywhere, light goes at c, stars and galaxies move, and the Universe is expanding." https://www.forbes.com/sites/startswithabang/2018/02/23/if-the-universe-is-13-8-billion-years-old-how-can-we-see-46-billion-light-years-away/?sh=494c7e2d1303 https://www.forbes.com/sites/startswithabang/2018/02/23/if-t...