Guide to the Many Meanings of Quantum Mechanics
&quot;The Many-Worlds Interpretation has it that each time we make a measurement, reality splits into several alternative versions, identical except for the measurement outcome.&quot;<p>That&#x27;s not right, the Many-Worlds Interpretation is just that the wavefunction in the Schrödinger equation (or its generalizations) is real, and it rejects that there&#x27;s a separate process that somehow collapses the wavefunction to the single &quot;branch&quot; we perceive ourselves to be in. At the metaphysical level, there&#x27;s no splitting involved, and no ontological measurements either (much less a &quot;we&quot; to do the measuring).