The video above is a podcast with John Mearsheimer, the guest, explaining why China would not invade Taiwan.
In the first 2 minutes or so, John has to explain to Lex (the host) what "amphibious operations are difficult" mean. Lex is incredulous, as he asked (0:32) "So geography still has a role to play in the 21st century?"
Yes, Lex. Geography is still important,
