Interesting video from Carl Benjamin.
Apparently, some philosopher is arguing that 2 + 2 doesn't always = 4; sometimes it equals 5.
This is madness, utter madness. I'm a scientist; objective reality does exist. The existence of gravity isn't up for debate. If you disagree, go and jump off Beachy Head.
Two plus two never equals five; two plus two can only equal four.
The number two isn't a variable - it's a constant. Two is always one plus one, no more no less.
Postmodernism is a mind virus which erodes people's ability to think and reason. It should always be exposed for the trash it is.