Earlier quoted context omitted.
That's the competitive reality of driving in congested, urban areas. Drivers who cut in can save a lot of time over the course of a commute. They disrupt traffic flows and delay everyone else. So efficient traffic flows have to be defended. > Surely all drivers have to change lanes at some point to get where they're going; Yes, and some drivers like, for instance, to pass around 25 other cars who are making the same…
The problem is that traffic engineers disagree with your assessment of efficiency. You are effectively using aggressive driving (a crime) in order to circumvent actual laws (yield to mergers) and to self-righteously defend the worldview that you have constructed in order to provide a superficially logically consistent explanation for your emotional frustration about losing out.
Do they?
> You are effectively using aggressive driving
Not me, personally. (I ride a bicycle and use transit from time to time, and the occasional rental car on weekends and holidays: out of the vicious rush-hour traffic.)
Fact is, if you throw a blinker, there will be those drivers who will reduce gaps and not let you in. Usually not in merge situations (as in, you can't join this freeway, bugger off!) but situations in where the lane change is not necessary (you're not entitled to swerve into this lane just because it's moving faster!). I agree with them; they are doing the right thing. It can usually be done safely, within the "two second rule" for following another vehicle, depending on speed. Be it right or wrong, safe or unsafe, if you want to outwit those who are doing it, you have to do the wrong thing an not blink.
Not letting people join a freeway is despicable. (It happens too: "Hey, you can merge here ... just not in front of me, thank you very much!") The do-not-blink principle does not apply there, because it's obvious that you want to merge whether you blink or not, being in a merging lane and all! My comments don't apply to that situation at all.