Daily Read Book

Parallel Systems raises $100M for driverless battery freight railcars; Digital Optimus is learning to play Diablo just by watching the screen

11 Oct 2026

A calm edition of the prior 24 hours — 2 briefings in chapters, with links back to sources and the live feed — about 2 min to read.

AI Chapter

Digital Optimus is learning to play Diablo just by watching the screen

Elon Musk says Digital Optimus, the Tesla and xAI computer-use agent, can now get about halfway through the Diablo campaign using only screen pixels and keyboard and mouse input.

Why it matters Games are a hard, fast test for agents that see a screen and act like a person, the same skill needed to use real software and web apps.

Autonomy Chapter

Parallel Systems raises $100M for driverless battery freight railcars

Parallel Systems, founded by ex-SpaceX engineers, closed a $100M Series C led by AVP to scale its third-generation Panther railcars, which carry containers up to 500 miles per charge without a locomotive or crew.

Why it matters If small self-driving railcars work, rail can win short freight hauls back from trucks.