#21: It’s a Bird, It’s a Plane!
Blimps reached the height of their popularity in the 1920s and 30s. Since then, they’ve slowly deflated in popularity. Besides the famous Goodyear blimp, not many of them have graced the skies in the decades since. Spotting a blimp in the sky was a pretty novel thing even back in the 90s, so this is a nostalgia for many, many decades past.

There’s a pretty good reason why blimps are a rare sight. First off, helium is incredibly expensive. A single blimp can hold over 200 cubic meters of helium. Considering that helium is a nonrenewable resource that humans have almost depleted, blimps aren’t worth it. Plus, we have much more streamlined technology that can do the same job with less money and time.