Spaces are a relatively new feature of written text, and I'd rather keep them than go back.

"[...] the task of separating the words in continuous written text, which for half a millennium had been a function of the individual reader’s mind and voice, became instead a labor of professional readers and scribes. The separation of words (and thus silent reading) originated in manuscripts copied by Irish scribes in the seventh and eighth centuries but spread to the European continent only in the late tenth century [...]"