Suppose Zayd is indoors at nine in the morning and has left by one in the afternoon. Both time-indexed propositions may be true:
9 a.m.: Zayd is inside.
1 p.m.: Zayd is outside.
The two conditions can be known with their times without positing a new intrinsic perfection in the knower.
The historical objection claimed that a change in what is known must entail a change in knowledge or in God's essence. Distinguishing the two time-indexed facts is the first step toward the reply.
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The Universality of Divine Knowledge and Power: Classical Objections
Suppose Zayd is indoors at nine in the morning and has left by one in the afternoon. Both time-indexed propositions may be true:
9 a.m.: Zayd is inside.
1 p.m.: Zayd is outside.
The two conditions can be known with their times without positing a new intrinsic perfection in the knower.
The historical objection claimed that a change in what is known must entail a change in knowledge or in God's essence. Distinguishing the two time-indexed facts is the first step toward the reply.