Vision and Perception Illusions

• Only thumbnail-sized area of visual field in high resolution, rest out of focus
• Brain constructs complete visual experience using editing tricks
• Eyes make 3-4 saccades per second (50ms jerky movements) to scan environment
• Brain shuts down vision during saccades to prevent motion blur
• Results in ~2 hours complete blindness daily, filled by brain's best guesses

Time Processing and Sensory Integration

• Example: stirring milk into coffee cup
  • Light reflects off spoon, hits eyes after 1.3 nanoseconds
  • Sound travels to ear in 1.2 milliseconds
  • Heat detected by fingers, signal reaches brain in 50ms
• Brain processes different inputs at different times but presents as simultaneous moment
• Conscious experience occurs 0.3-0.5 seconds after events actually happen
• "Present moment" is selectively edited version of past

Predictive Processing in Fast Actions

• Table tennis example: balls travel 25 meters/second
• Light from ball reaches brain after 100ms processing time
• Ball travels 2.5 meters (table length) during processing delay
• Brain calculates ball's future position based on location, speed, direction
• Creates fictional version of ball in predicted location
• Brain prepares multiple response scenarios before ball is hit
• Creates "ghost versions" of possible movements in muscles
• Selects single most likely future, deletes other possibilities
• Movement orders triggered before ball actually hit back
• Conscious decision occurs after body already acted

Walking as Multi-Timeline Processing

• Brain operates in three time spheres simultaneously:
  • Processes sensory feedback from past
  • Calculates current body state
  • Predicts future movements
• Next step order sent before current foot contact signal reaches brain
• Muscle patterns for next two steps already calculated

Emergency Response Systems

• Banana peel slip example
• No central control room - different body parts aware of different things at different times
• Spinal cord knows information before brain
• Different brain regions process same event at different speeds, make independent decisions
• Gyroscope in ears detects position change, alerts brain stem/spinal cord
• Emergency recovery patterns triggered within 200ms
• Pre-programmed sequences: arms shoot out, leg stiffens, core contracts
• Conscious awareness occurs 100ms after body already recovering

Predictive Nature of Internal States

• Hunger, energy levels, emotions are predictions, not just reactions
• Brain predicts what you'll need soon based on routine patterns
• Self-fulfilling prophecy: get hungry/tired because brain assumes it's time
• Emotions are predictions based on past experiences
• Party anxiety example:
  • Brain analyzes past party experiences
  • Predicts social scenarios based on expected attendees
  • Adjusts heart rate, hormones, muscle tension before entering
  • Creates actual anxiety, confirming prediction for future reference

Conscious Self vs Automatic Systems

• Conscious self not decider of most daily activities
• Brain/organ systems act as "butlers" handling busy work
• Conscious self is passenger deciding destination, not driver
• Specializes in long-term planning and abstract thinking
• Acts as storyteller creating life narrative for brain and self
• Can see big picture beyond internal prediction machine's grasp
• Able to edit and write new predictions into system
• Sometimes disagrees with brain but ultimately has power to define identity story
• Story so convincing it's experienced as undeniable reality
• Also good at enjoying ice cream, internet videos, thinking about Pokemon types