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At 40 percent blood loss, the body starts to cross over into a state from which it cannot recover on its own. All organs need oxygen to function, including the heart, and if blood pressure drops too far, the heart can’t beat fast enough to maintain sufficient blood pressure for survival. At that point, the person goes from compensatory to hemorrhagic shock and actively starts dying. He or she may start shaking convulsively and slip in and out of consciousness. The person will be hallucinatory and delusional; in fact, they may have no idea they are dying. They may try to joke with the doctors or ask them why they look so worried. The brain, heart, and vital organs are not getting enough oxygen and are beginning to shut down, which accelerates a process of acid toxicity triggered by the initial shock of blood loss. Acidosis can kill people even though they received enough blood to keep their heart beating.
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Another theory of reality is “Leibniz’s fearful doctrine of monads,” as
Schrödinger put it. The theory is impossible to disprove but strangely useless.
Gottfried Leibniz was a seventeenth-century mathematician who conceived of a
world made up of irreducible particles called monads that, taken to their logical
conclusion, meant that each person passes their life alone in a self-referential
universe of one. Schrödinger rejected Leibniz by proposing that the universe was
constructed in exactly the opposite way: our individual experiences are an illusion
that conceals the ultimate reality of one great consciousness.
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