Скачать или смотреть Human Evolution — Have Our Brains Reached Their Limit?

Explore the scientific and evolutionary limits of the human brain — from energy constraints and childbirth barriers to the rise of cultural and technological intelligence. Learn how the next phase of evolution may merge biology with machines, reshaping what it means to be human. Human brain evolution looks like a straightforward story of gradual improvement, but it hides a deep biological and physical paradox. If bigger brains always meant better cognition, evolution should have kept increasing their size. Instead, the human brain has stalled at around 1.4 kilograms for hundreds of thousands of years, even while culture, tools, and technology exploded. This video explains why our intuitive picture of “more neurons = more intelligence” breaks down, and how energy limits, childbirth mechanics, genetic precision, and cultural acceleration create a multi-layered evolutionary barrier that feels invisible until you look at it closely. You will see how the brain’s “hidden constraint system” operates in real time. As metabolic demands rise, evolution clamps neural expansion just as sharply as boiling water clamps rice temperature in paella. The moment extra brain tissue would exceed the energy budget, natural selection pushes back. Meanwhile, the pelvis enforces a hard anatomical ceiling: babies must fit through a narrow birth canal evolved for upright walking. Genetics adds another boundary layer, where thousands of developmental genes allow almost no margin for beneficial mutation. And above all of these sits cultural evolution — a fast, self-propagating information layer that insulates humans from biological pressures, just as steam insulates the bottom of a paella. Culture accelerates learning and innovation so dramatically that DNA can no longer keep up, forcing biological evolution into a slow, nearly static state while technology races ahead.

In this Video You Will Learn
Why bigger brains stopped being favored by natural selection
How metabolic costs act as a “thermal clamp” on neuron expansion
Why the obstetric dilemma creates a hard anatomical size limit
How mutation rates and developmental complexity slow brain evolution
Why cultural evolution outpaces genetic change by millions of times
How physics sets information-processing limits for neurons
Why supercomputers and brains excel at different tasks
What future cognition may look like in a hybrid biological-technological world

Timestamps:
00:00 The brain-evolution paradox
00:31 Why energy rules neuron expansion
02:04 The childbirth constraint
02:34 Mutation load and genetic precision
03:36 Cultural evolution overtakes biology
04:06 How slow genetic change really is
06:10 Scenarios for future intelligence
09:49 Thermodynamic boundary of thought
10:51 Brains vs. machines
11:51 New selection pressures in future environments
13:56 Evolutionary trade-offs
15:56 Cultural evolution as an accelerating layer
16:59 Information bandwidth limits in neurons
18:21 Comparing evolutionary timescales
19:11 Final takeaway: the hybrid future of intelligence

#HumanEvolution #BrainLimits #Neuroscience #CognitiveEvolution #EvolutionaryBiology #CulturalEvolution #FutureOfHumanity