2 ms·

You can't tell at the 10 minute mark whether or not power will be back in 10 more minutes, or in 3 hours.

• jameshart 3y ago
  In software incident management the rule of thumb is that at the n minute mark, in general, expected outage duration is 2n minutes.
• ryanjshaw 3y ago
  But you can tell when 3 hours have passed and decide upfront - as a matter of policy - where to draw a line.
  • vkou 3y ago
    And at the 4 hour mark, the passengers were rescued. It would be ironic, of course, if the rescue train hit any one of the geniuses that smashed windows and started walking the tracks.
  • midasuni 3y ago
    And where would you draw the line?
• switch007 3y ago
  Once you detect that electricity supply is damaged and that it’s over 10 miles and you know how many trains have stopped moving … you know it won’t be 10 minutes. It can’t take long to figure out what trains have stopped moving and where electricity has been cut.