A drink coaster goes under a glass or cup, and is intended to catch any condensation or spillage from the glass, to protect the tabletop underneath.

But most coasters are flat.* Any liquid that gathers on them can roll off the edges onto the table. Some coasters are made of a water-absorbing material, like cardboard or cork, but some are made of materials that repel water, like metal or ceramic or plastic.

I ask this because I recently discovered a small coaster-like tray with an upraised lip around the edge. Strictly speaking, it's not a coaster, but it's exactly the right size to be used as a coaster - and, with the upraised lip around the edge, it actually prevents liquid from escaping onto the table.

So why are coasters flat?

(I bought some of the lipped not-coasters to use as coasters. This design makes sense to me. And they happen to look nice as well.)

* It was only while researching coasters online prior to making this post that I discovered that some coasters have lips. Every coaster I've seen in real life is flat.

It's obviously unfamiliar, but I have to say that I don't think it's that much worse than the one we had before. It does obviously follow the trend of making everything look so much more mobile-y, but unlike Reddit they haven't really messed with the core display of content - in fact, I'd say the tweets themselves have gotten a bit larger. I've heard that the timeline gets reset to algorithmic sorting every 24h, which is an absolute no-go for me, but I haven't experienced that aspect myself.

Related: I've recently started using Tweetdeck and honestly have no idea why I should ever switch back to the main Twitter feed, redesign or not. Columns, lists, the customisation - it's pretty much everything I've ever wanted. Any tips or opinions on that?