>Is there some alternative direction available where testing and verification are easier and cheaper? A plurality of physicists now work in condensed matter. S

>Is there some alternative direction available where testing and verification are easier and cheaper? A plurality of physicists now work in condensed matter. See e.g. https://physicstoday.scitation.org/doi/10.1063/PT.3.4110 https://physicstoday.scitation.org/doi/10.1063/PT.3.4110