[NeonVice]

Speech even without thought is still free speech. You would hope that the most thoughtful speech would be easily recognized and followed in place of its opposite. However, free speech does not exist in a world where only one group decides what is thoughtful speech.

[tus87]

The only speech without thought is tourettes.

[bencollier49]

And glossolalia, and sleeptalking. Oh, and recitation from memory. Probably some other things.

Depending on your definition of "thought".