Shaving, Wet shave vs electric

A friend of mine used to work for Gillette pretty high up the marketing chain, and he told me they have invented the ultimate razor, that never dulls, never needs replacing, and will never see the light of day, as it is patented to fuck and locked away, allowing them to bring out more "inovations" to reel suckers in year after year - his own opinion was that the sensor excel was the best razor they ever made

My Uni Lecturer in Metallurgy worked for gillette developing the titanium treated blades for the mach products.

Apparently a twin blade razor was proven in their research to be the best performing by far in terms of hair removal & comfort. But of course they want to keep selling people expensive multiple blades.

In terms of a non-dulling razor something ceramic would probably work.