I am trying to understand the concept behind the Spatial Reference System.
Why is it used and what is so specific about the SRID number?
I went through many definitions and almost all went over my head.
I thought, it was a reference to draw maps from a real world place, expressed in map, but then I inserted a point in PostGIS, with SRID 300 and the same point with SRID 350. I found the two points showing the same place, in QGIS viewer.