The comment that this thread branched off of is about the relative difference in danger of 10mph with a modern vehicle, not 20, 30, or 40mph. I don't think I agree with that user's overall point, but I also didn't think your response to it was particularly on point either.
I think our transportation infrastructure needs a massive overhaul to be more pedestrian, bike, and even motor-vehicle friendly, but I think speeds limits are such a poor answer to that problem that arguing about +10mph is merely a distraction.
The comment that this thread branched off of is about the relative difference in danger of 10mph with a modern vehicle, not 20, 30, or 40mph. I don't think I agree with that user's overall point, but I also didn't think your response to it was particularly on point either.
I think our transportation infrastructure needs a massive overhaul to be more pedestrian, bike, and even motor-vehicle friendly, but I think speeds limits are such a poor answer to that problem that arguing about +10mph is merely a distraction.