Research for a university project. - Bike locks

So kevlar threads can be cut. But how quickly? Is it possible to do that with bolt croppers, quickly? Is it possible to do that with an angle grinder, quickly? I think you need to be thinking about how slow it is to cut, rather than focussing on making it uncuttable, since no such thing exists. The main tools of choice, from what I can gather, are angle grinders and bolt croppers. So the things to work on are how to hinder those tools, right?

This is true, good point.