1. Schrodinger's Cat

2. Schrodinger's equation

3. Consequences of Schrodinger's Cat
What/Who/Do we need an ultimate observer to collapse the wavefunction of the entire universe
Copenhagen interpretation: the wave function collapses when observation occurs
Many Worlds interpretation: on the collapsing of wavefunctions, a new world is created

4. Other interpretations
Ensemble interpretation: The 'as if' argument, that math only describes the phenomena
Objective collapse theory: The cat is always either dead or alive, because it can observe itself
Relational interpretation: It depends on who is considered the observer when considering the wave function