The social media has been occupying a space previously oligopolized by the mainstream media, influencing even the electoral campaigns.
A very clear example of the effect of social media on mainstream media is President Donald Trump's tweets. He chose a social media platform to communicate with the world and every tweet he writes turns to traditional newspaper stories in the US and around the world.
In addition, you can say that even the traditional media vehicles have joined social media. All TV channels have accounts on Twitter and Instagram.
Short circuit evaluation simply means that in a boolean expression evaluation, you can stop once you find the first condition that negates or satisfies the expression.
Here you don't continue with the expression or another condition once the first condition is satisfied.
