catmoon wrote:I'm not sure that there is anything wrong there. For all we know, it was inevitable that he would change his mind. We don't know that Buddhahood implies instant and complete omniscience. Note that in order to perceive those few with little dust in their eyes, Buddha had to make use of his newly acquired powers. Perhaps the occasion to do that simple had not arisen yet.
Additionally, if Buddhahood implies instant and complete omniscience, no one else was omniscient and able to converse with him. An omniscient Buddha talking to a mere human might be as a human talking to a dog. For example, a man might say to a dog, "Your biting the tax collector was a good one

" The dog hears an incomprehensible sentence, but sees his master smile and understands the word "good." Thus, the dog thinks, "My master likes me beside him," and being happy, wags his tail.

HHDL: "My confidence in venturing into science lies in my basic belief that as in science so in Buddhism, understanding the nature of reality is pursued by means of critical investigation: if scientific analysis were conclusively to demonstrate certain claims in Buddhism to be false, then we must accept the findings of science and abandon those claims."