When we developed written language, we significantly increased our functional memory and our ability to share insights and knowledge across time and space. The same thing happened with the invention of the printing press, the telegraph, and the radio.

Technology rewires what we remember

Every technology that lets us store and share ideas works like an external hard drive for human civilization. Writing meant you didn't have to memorize everything—someone in ancient Rome could leave instructions for future generations without being there. The printing press turbocharged this by making that knowledge reproducible at scale. What started as one person's insight could suddenly reach thousands.

We're living through another one of these moments with digital technology, except most of us don't realize it. You can access virtually any book, lecture, or explanation instantly. Your phone remembers things your brain never could. But here's the less obvious part: each leap in technology doesn't just add capacity—it changes what we think is worth remembering and what we outsource entirely. We stopped memorizing phone numbers the moment we had contact lists. We stopped navigating by memory when GPS arrived. The technology shapes what our minds do.

This matters because it means the real skill in any era isn't hoarding information—it's knowing how to find it, filter it, and think with it. Right now, almost everyone's bottleneck isn't access to knowledge anymore. It's the ability to make sense of abundance.