Sir Tim Berners-Lee, the British computer scientist credited with creating the World Wide Web in 1989, doesn’t seem like a man who has many regrets. But he admitted earlier this month at a symposium in Washington that his decision to include those annoying forward slashes in http addresses was made on a whim. If he could change one thing about the Internet now, he says, he would slash the slashes, which are completely unnecessary.

This is the kind of question you discuss over a couple of drinks with your friends. And to help you get the conversations started take a look at some of these posters by Tom Walker published in Creative Cloud in the UK.