I stumbled across a little social experiment on Facebook the other day. The caption was: “Help me choose the most suitable tiles.” See image below. Naturally, I clicked in - partly curious, partly wanting my preferred tile validated (No. 1). But here’s what stopped me: out of 65 comments, there was no clear loser. Every tile had its fans. Some people were bold and decisive. Others were completely unsure. A few went totally off-script: “None of them—change the wall colour.”