Hacker News new | ask | show | jobs
by nutanc 2052 days ago
Lets do a simple test:

You are in between two walls and there are two straight lanes. Lane 1 has Tesla FSD coming in at full speed. Lane 2 has a human driver coming in at full speed. You can choose to be in one lane. The FSD and the human can both see you only 50 mts out and if they brake as soon as they see you, you will survive.

Which lane will you choose?

1 comments

Well, a Model S can just barely stop in 50 meters at 60mph, while some other luxury and sporty cars in the segment can stop in 35 meters or less. And that’s only 60mph, hardly “top speed” or even a normal highway speed. So regardless of driver assistance features, I’d choose a car that at least has a chance to even physically stop assuming instant reflexes. 50 meters is probably a much too small distance for this thought experiment.
I don't know my cars that well, but an alert driver will take at least 300ms to begin reacting. That's over 8m at 60mph (not sure why we're combining unit systems here). So I'll stand in front of the Model S in this particular scenario and hope to get away with 'mere' broken legs/pelvis. Give the human more time and is probably take the human, not because that's necessarily the more reliable option, but because its distribution of outcomes is more well known to me.
Most, if not essentially all, cars in that category have emergency automatic braking, so the Model S still isn't the best choice.