Dear Rational Optimist,
Imagine never plugging in your phone for a week, flying to work in an electric air taxi from 100 miles away, or driving from Miami to Chicago on a single charge.
To get there, we need to maximize battery density.
I recently caught up with Ouros Energy founder and CEO Ethan Loosbrock to learn about his company’s state-of-the-art batteries—and imagine how a truly “cordless” future would be.
In our interview you’ll hear:
Why China’s battery “dominance” isn’t as strong as it seems
How to create batteries with 10X today’s energy density
How our “flying car moment” will change everything
The two factors that make or break a battery startup
Is a microgrid or off-grid future viable?
Please click here to watch my conversation with Ethan now.
A transcript of our conversation is available here.
—Stephen McBride
Stephen McBride is a co-founder of the Rational Optimist Society.












