My interests are broad.  I am particularly interested in working towards any goal focused on building a more intelligent, healthy, and sustainable society. 

There are many types of open questions related to such goals, all quite different though not all independent or mutually exclusive.  Within any area, many details must be considered.  For example, carbon-free sources of energy are becoming increasingly popular around the world, with growing options for energy capture and storage. 

But the existence of efficient green energy technologies does not address the issue of climate change by itself -- such technologies are only beneficial if they are used on large scales, which translates to questions in economics, politics, and social acceptance.  Even in ideal circumstances, e.g. plasma fusion devices reaching high efficiency at relatively low cost and gaining wide public approval, it would take a considerable amount of time and money to incorporate such devices across the global infrastructure. 

Contemporary challenges require multidisciplinary work and a holistic mindset.  Technology is one important area, but it must be addressed in parallel with sociopolitical and economic question.  Analogy: one cannot solve a Rubik's cube by solving each side in isolation -- instead, all sides must be solved together, self-consistently.