What non-digital tech advancements are there in the 21st century?

Hi. I am curious about this. Most advances in tech that I have seen and/or heard about have some kind of ties to computers- smartphones, tablets, streaming services, video sharing sites, social media, apps, and things like Siri, Alexa, Google Assistant, etc. What non-digital tech advancements are there? There are... show more Hi. I am curious about this. Most advances in tech that I have seen and/or heard about have some kind of ties to computers- smartphones, tablets, streaming services, video sharing sites, social media, apps, and things like Siri, Alexa, Google Assistant, etc.

What non-digital tech advancements are there? There are a few things I can think of. There are electric vehicle charging stations. There's one in the parking lot of the local plaza where I grocery shop.

Scientists have figured out how to create solid light crystals:

https://www.iflscience.com/physics/crystallized-light-reveals-potential/

We have DVD rental machines/kiosks and flying cars are in development.

There are certain new types of health supplements that I am familiar with.

Please help- thank you.
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