Why it worked
The post taps into a sense of nostalgia and historical curiosity, combined with the relatable experience of waiting for a package. The visual of the handwritten address on the envelope adds a personal touch, while the promise of future updates creates anticipation and encourages engagement.
Summary
The creator shares their excitement about ordering sourdough starter from Oregon Trail Sourdough, which is said to date back to 1847. They have mailed a stamped envelope and are now waiting for the starter to arrive, promising to share updates on their process.