I was marveling at my new Garmin watch yesterday that has topographical street maps for the entire world in only eight gigabytes. A watch having more than enou

I was marveling at my new Garmin watch yesterday that has topographical street maps for the entire world in only eight gigabytes. A watch having more than enough space for that is amazing in itself but really that's quite the compression for a seriously intense dataset. Technically everyone could have that already pre-installed on their PC or phone these days, the problem of course that is a commercial dataset buut openstreetmap solves that part.