“I think I was starting to hallucinate.”
No Funky, you had an entire conversation with a non-existent robot.
If the heat and your exertion is causing you to hallucinate a talking robot, then you probably should seek medical help immediately, as heatstroke can lead to brain damage, organ damage, and death.
There’s another possibility here of course. The possibility that Isaac has been Les all along. That Funky was seeing Les as he really is: a smug, soulless machine, created to serve his master by doling out smug superiority and cancer books, while every thing around him decays into lumps of stagnant, half-realized notions as the creator loses interest.
For one brief conversation, the horrific reality that is Les Moore was made visible to Funky’s eyes, until his brain caught up and applied the protective illusion that allows Funky to enjoy what he can of his two dimensional existence.
Funky hadn’t started hallucinating, he had just, for a moment, stopped.