The Glass Giant: What if Silicon Never Happened?

What this episode covers

Every smartphone in our pockets contains billions of transistors, each smaller than a virus. But what if the semiconductor revolution never occurred? In this episode, Boni explores a world where modern computing is still powered by the vacuum tube. We calculate the staggering physical footprint of a "tube-based" iPhone, the impossible power requirements to run it, and the thermal reality of a computer the size of a city. Join us for a deep dive into the massive scale of the microscopic.

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Frequently Asked Questions

How long is this episode of 3B’s World Podcast?

This episode is 5 minutes long.

When was this 3B’s World Podcast episode published?

This episode was published on March 1, 2026.

What is this episode about?

Every smartphone in our pockets contains billions of transistors, each smaller than a virus. But what if the semiconductor revolution never occurred? In this episode, Boni explores a world where modern computing is still powered by the vacuum tube....

Can I download this 3B’s World Podcast episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.