Only for write operations. Reads are effectively free, and cached files are invariably predominantly read heavy.
Even then, the wear effects of writes on SSDs are exaggerated. Improvements in the technology and wear leveling have made them roughly as reliable as spinning disk.
For a phone, the storage is expected to remain viable beyond the expected usage lifetime of the device. It doesn’t really matter if caching wears storage a little faster if the device is inoperable before it’s a problem.







Yup. The actual sources of world hunger aren’t material but systemic. So it’s not as easy as just “giving everyone food”, but the more complicated “give everyone access to a robust agriculture supply chain”.
Fortunately, giving 1-2% of people fertilizer and some work animals might be a bit more complicated, it’s significantly cheaper.