Line up today's five stories and the same shape keeps showing through: the technology arrives faster than the people around it. The hardware is basically settled. What slows it down is human, and it comes in three flavors, politics, taste, and geography.

Start with cost, because it underwrites everything else. In a long interview with Bill McKibben, the argument is that solar, wind, and batteries have already become the cheap way to make power, and that the remaining fight is political rather than technical. If that is right, the interesting question stops being whether clean energy works and becomes why the build-out still stalls. Hold that thought.

Now watch taste do the slowing. Ferrari's first electric car, the Luce, did not divide people over range or charging. It divided them over how it looks, an argument about identity, not engineering. The used-EV story runs the same tension in reverse: a 2012 Model S road trip shows nostalgia pulling one way while a decade of quiet iteration, in efficiency and driver assistance, pulls hard the other. The feelings lag the capability.

Then geography and raw capability. Formula E ran its GEN4 car up the Goodwood hill, a machine the commentary calls more capable than anything the series has built, while on the other side of the world a Japanese startup is trying to make solar work on a snowbound coast the industry had written off. In both, the ceiling is not desire or physics so much as where and whether the new form factor proves out.

What to watch over the next six months: the spec sheets are close to decided, so the friction moves everywhere else. Permitting and grid politics, cultural acceptance of cars that look and sound unfamiliar, and whether new shapes like wall-mounted solar and all-wheel-drive racers actually survive contact with the real world. Those are the contests that decide the pace now.

Bottom line: The battery stopped being the hard part a while ago. The advantage now goes to whoever clears the human bottleneck fastest, the town that permits solar in a week, the buyer who gets over the styling, the region that finally gets a panel it can use. Bet on the people problems, not the physics.

Commentary on a third-party video. Figures and claims are as presented in the source and have not been independently verified. Spotted an error? Tell us and we will correct it.