This reflects that any estimate of fair value is just that: an estimate, not a precise figure, so the margin of safety provides a much-needed cushion against errors and misfortunes.

Then you will know how much safety margin you have and when you need to ramp up capacity for your super-popular applications.

"The good news is that deforested areas can be reforested and provide a safety margin, " said Lovejoy, maintaining some optimism.