AFAIR en · X
Meanings
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(Internet, abbreviation, alt-of, initialism) Initialism of as far as I recall/remember.
alt of as far as I recall/remember
Near-synonym: IIRC
In the same thread (and others as well) it was stated and AFAIR never withspoken, that light 'climbing out a gravity well' redshifts, thus looses^([sic]) energy, but not speed (and vice versa falling in).
1996 July 24, LBsys, “John Baez' gravitational rainbow”, in sci.physics (Usenet):
Synonyms
AFAICT · AFAIAC · AFAIAA · to my knowledge · SFAIAA · to the best of my knowledge · AFAIK · AFAICMO · SFAICT · SFAIK · AFAIC · TMK · IIRC · TTBOMK