I knew when I chose the domain name that I was probably mangling Latin and, indeed, I have. Apparently if I wanted the sub-line to be correct it ought to be Sum Ergo Scribo, as scriptum apparently means a written work in progress.
However, not being inclined to try and figure out how to fix it and with the recognition that – gee, yeah – I am a work in progress, so it shall remain.
So, be warned, captious critics. I know it’s wrong. It still works.