The human retina communicates to brain with 10 Mbps. The 4-year old's brain has experienced 9 months in a womb and 4 years outside the womb. That's less than 1

The human retina communicates to brain with 10 Mbps. The 4-year old's brain has experienced 9 months in a womb and 4 years outside the womb. That's less than 150 million seconds. More than third of that while sleeping. Assuming the full sensory data rate is 50 Mbps total (probably less), 4-year old has received 100×10^6 × 50Mbps = 625 TB sensory information while in a waking state.