Kay’s advice places substance ahead of presentation. “Content over form” suggests that the ideas, purpose and usefulness of a work should take priority over polish, style or appearance when the two come into conflict. Form still matters, but it should support what the work is trying to achieve rather than become an end in itself.

The second part, “go for fun”, adds a psychological dimension. Kay presents enjoyment as a worthwhile guide in creative work, suggesting that curiosity and pleasure can help sustain exploration and experimentation. Taken together, the remark favours work that is meaningful and engaging rather than merely impressive in appearance. It encourages creators to concentrate on what they are making and why, while leaving room for playfulness in the process.