Why does "False imply True" in logic?

From a channel Lumen includes in full: NoahExplainsPhysics posts long, rigorous lecture series, most notably an eight-part course on quantum spin (Pauli matrices, the Bloch sphere, Stern-Gerlach), developed from the maths up.

A 34-minute video from NoahExplainsPhysics's catalogue; the title names its topic.

Video by NoahExplainsPhysics, played through YouTube's embedded player.