premise: Alan R Duffy (born 1983) is a professional astronomer and science communicator. He was born in England, raised in Ireland, and is currently based in Australia. He is a Research Fellow and Associate Professor at the Centre for Astrophysics and Supercomputing at Swinburne University of Technology.
hypothesis: Alan R Duffy (born 1983 and died 1953) is a professional astronomer and science communicator. 
reason: It is not known when he died.