Motte and bailey fallacy spotted. The starting argument was (not made by you but argued for by you):
Given that I'm not the one who made that argument, it isn't a motte and bailey fallacy. My position remains exactly where it was.
And batteries do indeed make sense today - that's why they're being installed, I mean, the first BESS in the USA was installed in the town I was living in at the time - Fairbanks, AK. And it uses NiCad batteries.
you decided to retreat from indefensible position you yourself chose to retreat to a completely different much more defensible motte positions in points 1 and 2,
Nope. I restated and rephrased. You're the one that constructed the strawman.
My FIRST POST stated the so called "retreat" position.
1. If battery costs are cut in half again, they'll challenge pumped hydro: Note how this is an IF. I'm not guaranteeing it, I just think that it's a real possibility.
2. Batteries now make sense for part of the solution: Given that they're already being installed, I don't think this should be all that controversial.
3. While past returns are not a guarantee of future returns, we do know that, for example, development for sodium-ion batteries is ongoing, and that's projected to be 10-20% less than lithium-ion, and lithium-ion keeps getting cheaper and cheaper. It probably helps that I didn't mention a timeline for it to happen.
I'm not defending your strawman position for me, but I'm fully willing to defend my actual one.
For example:
finally "they can work, you just need magical engineering and things that don't exist, but I'll claim do anyway because EVs are also magical" (push back out to the bailey with prima facie absurd claims about magical engineering that doesn't exist, but should exist because you said so).
I mentioned zero magic about grid storage, batteries, or EVs. Given that you're the one bringing magic into it, I rest my case: You're creating a strawman to argue against.
Or, at least, properly identify my supposed position, using what I actually posted, as well as the backup. Keeping in mind that it should be a major difference, not just shades from attempted rephrasing of stuff.
You can't take a point that was "maybe" in my first post, treat it like I declared it a sure thing, then accuse me of being the one to commit the fallacy. Sure, you can debate on whether or not they'll be able to cut the cost of batteries in half again, but keep in mind that I was just treating it as a "maybe." I think the odds are good for them managing it, but it isn't guaranteed, especially on some sort of short timeline.