[Robotbeat]

The irony is that flash write endurance for modern flash chips is actually greater if the writes are at higher temperature. Charge mobility is greater, and the writing damages the cells less.

Unpowered persistence is the opposite, however. At 85 Celsius, the data may last only single digit days unpowered by at freezing temperatures could last hundreds of years unpowered. For the same reason, I believe: charge mobility is lower at lower temperatures in semiconductors.