I wonder what Elon will say if he finds out that his Giga factory isn't the most efficient way to produce battery
GigaFactory is a building with XXX square feet of room with nominal dedication to produce batteries.
What other more efficient way can one dream up? Growing batteries on trees? Filtering them out of rivers? Mining them on asteroids?
Whatever the exact technological procedure is, it could and will be implemented if it brings some real bottom-line improvement.
The exact technological procedure is not set in stone, the lines (mind the plural) will be set up and then constantly improved when improvements are possible.
huge money pit if a competing technology beats it in price and capacity.
Because production tools cannot be replaced or what do yo have in mind?
Edit: Oh, and what other big factory out there will be using this competing technology?
Competing technology in a lab is same as nonexistent technology. It must be implemented in some big factory spitting out huge amounts of batteries to be called a competing technology.
A car produced in a manual shop in single digits is no competition to mainstream automakers. Not even a blip on the radar.