Greg McCall lives in the inner west of Sydney, Australia.
(Sydney is the capital of the state of New South Wales)
Retired after 42+ years in mostly the engineering area of mobile-related technology areas with Telstra.
(Started working on Mobile Network technologies in 1979)
My "claim to fame" during this time is sending Telstra's first SMS (text message) on the 14th December 1993.
The text message was "Hello World" and sent to my own mobile 
-- This was about a year after Neil Papworth (an engineer working for Sema who was the system vendor) sent the first text message in the world from Montreal Canada to the Vodaphone boss in the UK claiming to say, "Merry Christmas" where in reality, due to a software fault, was actually "Merry Chri" (an error which was covered up)
Learning:
Knowing that the more things you know, the more you realise you don’t know.
Photography History:
Landscape photography, early HDR photography was the start of the photography journey and then around 2009, learning about nightscape after difficulty in photographing the northern lights that Christmas in Inari, Finland.
Nightscape Light painting photography started after a course with Richard Tatti in 2017
Deep Sky Astrophotography learning curve starting mid-2018.
Learning and sharing your experience keeps the mind active.