Question: it does nothing to hurt the environment and the heat generated by the process is in turn used to run the machine so it's self-sufficient
It is one of the most fuel efficient machines I have ever seen.

Answer: it is not possible to tell

Question: Jon repeated his question in two other languages before the man answered.
The man answered the first time Jon asked the question.

Answer: no

Question: In their writings, Barlow and Dyson make clear they're aware of this fact.
They proved their knowledge when they wrote about the fact.

Answer:
it is not possible to tell