I would imagine not all technologies drop in price the same amount as production increases (the "learning rate"), and at some point there might be limits to how

I would imagine not all technologies drop in price the same amount as production increases (the "learning rate"), and at some point there might be limits to how much cheaper something really gets to produce. The relevance relates to climate change. Our ability to scale battery production cheaply is pretty important for a range of green technologies. My main take-away was that we haven't hit those limits yet, lithium-ion batteries are continue to get cheaper as the capacity produced increases. The price vs market size graph is a good summary: https://ourworldindata.org/battery-price-decline https://ourworldindata.org/battery-price-decline