Can you propose one which doesn't use massive lookup tables?

Writing Shakespeare in English requires a pretty massive look up table - we call it a dictionary.

No, you don't need a massive dictionary. Remember that the topic of this thread is a circle composed of galaxy "dots".

An elongated circle can be the letter O or perhaps zero. You can similarly compose other letters visually using galaxy dots, and that's presumably what the original poster meant when talking about writing out a Shakespeare. If the universe was infinite, this would be a possibility.