The fact that it’s nearly 70 years old and is still an influential “modern” font is amazing to me. It just feels right.

I feel the same for Futura, which apparently was created in 1927. The longevity is just crazy. “Hip” brands and designers still use it today just like Helvetica. And I can easily see these fonts still being used in the far future. I wonder if there are any other sans serif typefaces like these.