First: Thanks for all the kind messages about last week’s deep-dive into family histories. After just a week, it’s already my most-read entry here. It was a joy to write, and I seriously doubt it will be the last you’ll hear from me about such things, as though the reading I did, let alone the writing about it, I have unofficially put myself forward as this generation’s family archivist. Oops!
You'll be interested in building another metaphor when you find out about hybrid batteries.