A powerful mere dot
A spot, so tiny, sans serif
A singularity, complete in itself
A mark, a spot, a sign for the end of an idea - nothing more to say
A pithy black hole, with no escape, no going back, no return, once the pen or key is lifted
A terminal period in time, when writer and reader catch their breaths, a diphthong
There's no point going on and on, as a full stop looms
Wait for it, there it's done.