Is a theoretical physicist, believing a hypothesis true, ethically obliged to advocate for it? Is there an obligation running from physicist to theory?
Is it a desire to repay in some measure society for the advantages it confers?
Does vanity seek triumph over an unsolved problem?
Does the possibility that a mind can forge ideas and advance civilization lead to a theoretician promoting a hypothesis?
Is it curiosity?
Is it career advancement?
Is it the desire to create ideas that outlast a human life?
Is it the desire to experience personal and private joy of (partly) converting confusion to knowledge, lifting the curtain?
What motivates?