almost extinct notion

The biographer Richard Holmes, author of the prize-winning Age of Wonder, believes the idea of 'two cultures' is very outdated as we are now living in:

'a great age of popular science writing, on both sides of the Atlantic. Richard Fortey, Oliver Sacks, James Gleick, Dava Sobel, Janet Browne, Simon Singh, Martin Rees ... So I like to think the notion of two cultures will soon become entirely extinct, like the dinosaurs. Unless of course we fail to heed science, and become extinct ourselves first, through climate change.'