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Plug-in your hybrid

After four years of driving it, I traded in my Volvo XC90 Recharge plug-in hybrid-electric vehicle (PHEV), for the fully electric equivalent, Volvo EX90. Here are some thoughts I’ve had about the PHEV driving experience. Drive train types Plug-in hybrids exist on a spectrum of electrification: In my mind, the points on the spectrum are: Internal combustion a small, high-amperage automotive battery…

Bracket City

In today’s Bracket City puzzle , one of the first clues available is “ [first year it made sense to make new year's glasses 🤓🎉] ”. Now, I know what answer they wanted, and I got Rank: 🔮 (Puppet Master) as I desired, but I still have several objections — and I found a few more while researching for this article: First, Richard E. Sclafani and Peter S. Cicero’s patent, USD335134S Novelty eyeglass…

Equal set length doesn't imply set equality

On one of my projects, I happened to glance at a legacy function that was supposed to check if the user had permission to add or remove some Doohickeys from a Widget . But it wasn’t actually doing that: record Doohickey ( string Id , string Name ); record Widget ( string Id , string Name , ImmutableHashSet < Doohickey > Doohickeys ); class WidgetPermissionCheck : UserPermissionCheck { public void…