Postcards as low-bandwidth signal

May 16. Wallpaper ran a piece on postcards. The premise: write more of them.

The case is straightforward. A postcard costs less than a coffee, fits in a pocket, and requires no app, no login, no character limit. You write four lines on the back, drop it in a slot, and the recipient gets a physical object three days later. The friction is the point.

The piece walks through the mechanics. Buy the card at a museum shop, a train station kiosk, a hotel lobby. Write the address in block capitals. Use a pen that doesn't bleed through thin paper. Stamp it. Send it. The act of writing by hand slows the gesture down enough that the words actually mean something. Three texts sent from a cab don't do that.

The best detail: postcards are low-resolution by design. You can't fit a novel on the back. You can't apologize at length or explain a complicated feeling. You can only send a signal. I'm here. I thought of you. This image reminded me of that trip we took. The constraint forces clarity.

The piece doesn't romanticize the format. It just observes that postcards have survived precisely because they can't be optimized. No read receipts, no typing indicators, no way to know if it arrived until someone mentions it six weeks later. The lack of feedback loop is the feature.

One line stands out: "Need to remind someone that they're loved? Pop a line on a postcard." The phrasing is almost too direct, but it's accurate. A postcard is proof you paused long enough to remember someone exists. That's the entire transaction.