points by 1718627440 16 hours ago | 0 comments
The person who controls whether the light shows red or green and gives verbal authorization is the same. It's both a tool, to transmit the same information.
[–] pixl97 9 hours ago
[–] 1718627440 6 hours ago
That's also true, but you should also be able to trust written movement authorities, otherwise why have them in the first place?
A person saying you have a green light when you have a red light is not the same information at all. The probability that something has gone wrong and will lead to disaster is many many times higher.