Alternatively, he purchased the present ox using the ox-an-hour-ago as payment.
No. There is nobody to make that transaction with, and his past self still used the past ox, so he can’t sell it.
Alternatively, he purchased the present ox using the ox-an-hour-ago as payment.
No. There is nobody to make that transaction with, and his past self still used the past ox, so he can’t sell it.