As much as every "poor
EE student" wishes we could destroy the universe with S-R Latches (especialy at 4 in the morning with
Circuits homework), simple reality kicks in here. The heart of your S-R latch is made out of two
MOSFET's (or other transistors, like
BJTs or
JFETs). That's EE geek speak for "really tiny
transistor". Now, the circuit operates by sending one of the two outputs
HIGH, and when one of the outputs is HIGH, it sends the other to
LOW.
In reality, one of these MOSFET's is "slower" than the other. It will be slower at reaching HIGH, and when the other one beats it to HIGH, it will be the one set low.
This I learned after trying to set both inputs to HIGH to try to generate a simple
random bit generator. It failed, because the "faster" transistor will *always* be faster.