This thesis attempts to explain Everettian quantum mechanics from the ground up, such that those with little to no experience in quantum physics can understand it. First, we introduce the history of quantum theory, and some concepts that make up the framework of quantum physics. Through these concepts, we reveal why interpretations are necessary to map the quantum world onto our classical world. We then introduce the Copenhagen interpretation, and how many-worlds differs from it. From there, we dive into the concepts of entanglement and decoherence, explaining how worlds branch in an Everettian universe, and how an Everettian universe can appear as our classical observed world. From there, we attempt to answer common questions about many-worlds and discuss whether there are philosophical ramifications to believing such a theory. Finally, we look at whether the many-worlds interpretation can be proven, and why one might choose to believe it.

The purpose of this paper is to provide an analysis of entanglement and the particular problems it poses for some physicists. In addition to looking at the history of entanglement and non-locality, this paper will use the Bell Test as a means for demonstrating how entanglement works, which measures the behavior of electrons whose combined internal angular momentum is zero. This paper will go over Dr. Bell's famous inequality, which shows why the process of entanglement cannot be explained by traditional means of local processes. Entanglement will be viewed initially through the Copenhagen Interpretation, but this paper will also look at two particular models of quantum mechanics, de-Broglie Bohm theory and Everett's Many-Worlds Interpretation, and observe how they explain the behavior of spin and entangled particles compared to the Copenhagen Interpretation.

From 2019, a severe acute respiratory coronavirus 2, SARS-CoV-2, began to be a global pandemic. Many high income countries developed different strategies in response. This analysis intends to highlight how the COVID-19 became a global pandemic and the strategies that account for successes and failures. In identifying key policy differences, the high income countries of the United States, New Zealand and France were examined. The analysis found that New Zealand had proactive elimination strategies that proved highly effective, whereas the United States and France both struggled with mitigation factors that resulted in disproportionately higher confirmed cases and mortality rates. The analysis highlights how the airborne virus became a pandemic and then followed public policies’ effectiveness in terms of existing political institutions,and then their ability to be successful in preventing the spread of the virus.