Again, there is a bad word, ignore it. Yes, he appears not to know about the affect of different altitudes/pressures on the boiling point of water, but he's a philosopher, not a scientist. He still makes good points.
How do people defend their beliefs in bizarre conspiracy theories or the power of crystals? Philosopher Stephen Law has tips for spotting their strategies.
Intellectual black holes are belief systems that draw people in and hold them captive so they become willing slaves of claptrap. Belief in homeopathy, psychic powers, alien abductions - these are examples of intellectual black holes. As you approach them, you need to be on your guard because if you get sucked in, it can be extremely difficult to think your way clear again.