Same solution that cars have for winter weather overwhelming the traction capability of their normal tires: tires intended for improved traction in snow and ice

Same solution that cars have for winter weather overwhelming the traction capability of their normal tires: tires intended for improved traction in snow and ice. Yes, carbide studded snow/ice tires for your bike will cost more than the normal tires, but the same applies for cars. Yes, you're still more liable to slipping and losing control if you move or turn too quickly, but the cars have the same problem. The solution is also the same: slow down a little, and be attentive for (potential) ice in your path. Less light in the winter can also be addressed: put lights and reflectors on your bike and/or on your person. One can get wind-breaking bike jackets in bright, high-visibility colors, and covered in plenty of reflective material. Wicking and warming layers can be worn underneath. A well-focused, reasonably-bright-for-your-circumstances light on the front makes it easier for you to see, and also be seen. A red light on the back also helps with being seen.