Modern Headlights

No, polarized headlighting was researched and developed extensively, but it is not practical. It only works if all cars have polarized headlamps and windshields, and the light losses due to polarization are huge, taking away whatever safety advantage might have been gained. Plus, polarized headlamps might've been easy enough when all cars had standard-size/shape headlamps, but that stopped being true over three decades ago.

No, what I'm talking about is called "adaptive driving beam" (ADB) or "glare-free high beam". It's a camera-driven system that keeps track of the presence and position of other road users in front of you. Instead of a low beam directed downward-rightward—which geometrically limits the seeing distance no matter how bright the light is—you have a full-time high beam pattern with the other road users dynamically shadowed out. You have high beam seeing ability; they have low-beam glare levels. It's already on the roads in Europe, and no longer just on expensive cars, but on an increasing number of popular-priced models, too. And it works; you get at least a hundred feet(!) more seeing distance with ADB than with low beam, without an increase in glare.

American vehicle lighting suppliers have systems ready to go, but it's not yet legal in the States. And we can't just adopt the Europe/rest-of-world regulation on how the systems have to be engineered and tested, because that regulation doesn't meet the US legal requirement for how vehicle regulations have to be structured. The SAE Lighting Systems Group did an excellent and very fast job of translating the Euro standard into US-compatible terms without "reinventing the wheel", so that technical standard now exists, but SAE standards don't have force of law—if we're going to have it in America, the federal DOT will have to issue a regulation (an amended version of Federal Motor Vehicle Safety Standard 108). The current administration is very anti-regulation, and many Federal agencies have been ordered to put an indefinite freeze on issuing any new regs, so while before it looked like ADB would be legal in America this year, now it's ¯\_(ツ)_/¯ . It's a shame some people won't understand that regulations don't necessarily say "Stop, no you can't", sometimes they say "Yes you can, go ahead".