По времени:

Если осталось больше суток -
This wormhole has not yet begun its natural cycle of decay and should last at least another day.

Если осталось меньше суток, но больше 4 часов -
This wormhole is beginning to decay, and probably won't last another day.

Если осталось меньше 4 часов -
This wormhole is reaching the end of its natural lifetime.

Осталось совсем мало (точно пока неизвестно) -
This wormhole is on the verge of dissipating into the ether.

По массе:

Если осталось больше половины -
This wormhole has not yet had its stability significantly disrupted by ships passing through it.

Меньше половины, но больше одной десятой -
This wormhole has had its stability reduced by ships passing through it, but not to a critical degree yet.

Осталось меньше 0.1 от общей массы - T
his wormhole has had its stability critically disrupted by the mass of numerous s