3 ms·

You'd need more cooperation to put a pin-code activated electronic gate up.

• mark-r 6y ago
  But at least the gate would automatically close once they went through.
  • Talanes 6y ago
    Just need a gate that exerts tension when it's opened, so it'll drift back to closed if someone forgets. I've crossed a lot of back-country gates, never seen a wild breakdown of the system.
    • mark-r 6y ago
      Yes, that's exactly what I was talking about. You can't do that with a rope.