Do you know the feeling? You’re driving your steam train north towards Duluth, whistling a merry tune when suddenly the track is blocked? No? Okay, wait, let me rephrase that.
Do you know the feeling? You’re building train routes through the US using a pile of little plastic trains or wooden rails, and just before you reach Duluth for a ginormous amount of points someone else builds that track and you’re locked out? I know it happens to me regularly, at least.