This week on “Uncanny Valley,” we go behind the scenes of our Nathan Fielder cover story, unpack tech billionaires’ generous promises, and discuss the suspicious letters sent to US election offices.

Some hosts are threatening to strike, while others are plotting ways around Airbnb’s new restrictions. Guests, meanwhile, are celebrating.

MIT professor Sherry Turkle warns that people have become dangerously enmeshed with chatbots.