This is true. Though, I assure you, as someone who worked on the generation of optical interconnects before this one: The invention of the VCSEL really has chan

This is true. Though, I assure you, as someone who worked on the generation of optical interconnects before this one: The invention of the VCSEL really has changed the game, as has the invention of cheap planar arrays of microlenses. These are not the lasers of 1990.