Śyāmasundara: The more scientists investigate the workings of nature, the more complicated it becomes. They can never understand it.
Prabhupāda: No.
Śyāmasundara: They think it's complicated, but still . . .
Prabhupāda: Not complicated; it is perfect.
Śyāmasundara: Yes.
Prabhupāda: But they have no brain to understand.
Śyāmasundara: It becomes more complex.
Prabhupāda: Just like any ordinary man, how this tape recorder is working? There is a process. But because we have no brain, we think, "How it has become? How it has become?"
Śyāmasundara: It's so complex to us.
Prabhupāda: So one who does not know, it is complex. One who is in knowledge, for him it is not complex. Therefore Bhāgavata says anvayād vitarekabhyam. Anvayād itarataś ca artheṣu abhijñaḥ (SB 1.1.1). The Supreme Personality of Godhead is completely well versed. Well versed. Kṛṣṇa just like says: "Yes, I spoke this philosophy millions of years. I remember; you have forgot." There we have to study, how Kṛṣṇa's brain is.
Kṛṣṇa says in the Bhagavad-gītā, "Yes, I spoke." When Arjuna defied, "How can I believe that You spoke millions of years ago this philosophy to sun-god?" "Yes, that's a fact. You also were there. But I remember; you don't remember." The child, just like father says: "My dear child, when you were two years old you fell down and there was a fracture in your brain." And child, "Yes?" He cannot remember. The father can say: "Yes, it happened. You have forgotten. I remember." This is practical.
Similarly, Kṛṣṇa can remember everything, vedāhaṁ samatītāni (BG 7.26). You may not remember. You have no such brain. You are teeny.