Whilst it would be lovely if us Englishmen didn’t have student loans, they could be a whole lot worse. We only pay them once we earn over a certain threshold, and they’ll disappear after 30 years. Plus our unis are funded in large part by international students (which has its own issues), so Brits’ course fees are slightly subsidised.
Not good, but hey at least it’s not the US(!)
Continuous.
Instead of jumping from 1 to 2 to 3, we move smoothly across all (typically real) numbers. Obviously this would go to infinity almost every time because there are infinite real numbers between any two distinct real numbers. So instead, we merge it into a bunch of skinny rectangles with their bottom on the x axis and the top at the value of the function for the start of the rectangle. As we shrink the width of the rectangles, it approaches the continuous notion.
Continuous means “smooth” - there are no jumps Discrete means there are jump
Scanners have gotten better recently, meaning they can tell the difference between water and explosives, but these restrictions weren’t pulled out of thin air like many others.
https://en.m.wikipedia.org/wiki/Security_repercussions_due_to_the_2006_transatlantic_aircraft_plot
There was a thwarted terrorist plot to use drink bottles to hold explosives.