I got the Ryobi One+ (18V) trimmer a couple years back, mostly because I already had a ton of stuff that uses the same batteries...perfectly fine for my tiny back yard.
If it dies before I do, I'll probably upgrade to the 40V Greenworks unit, as I now have their mower, blower, and hedge trimmer (and a stack of batteries).
Yoga class makes me feel like a total stud, mostly because I'm about as flexible as a 2x4.
"Design"? Possibly. "Intelligent"? Sure doesn't look like it from this angle.
We used to be hunter gatherers. Now we're shopper borrowers.
The three most important words in the English language: "Front Towards Enemy".
The world makes a lot more sense when you remember that Butthead was the smart one.
You can never be too rich, too thin, or have too much ammo.