The parity. Bit. If you have occasional phone freeze ups, the parity bit has 1 in1,000,000,000 failure. Rate. That about 1 per second. In today's phones. When they started the parity bit the computers had 1 to 3 MHz which meant. 1 error in three hours verses. Today 1 to 3 gigabyte Hz with failure every 8 sec
This is why you need to power down your device and clear cashe to keep bad bytes from piling up in your processor and freezing it up