The first one has an expiration date in the (unknown) future. The second one has one that’s already in the past.
Thirdly there’s the category of "still useful but not true" like Newtonian physics.
The first one has an expiration date in the (unknown) future. The second one has one that’s already in the past.
Thirdly there’s the category of "still useful but not true" like Newtonian physics.