Pre-chasm, in technology entrepreneurship, describes the phase prior to Crossing the Chasm that focuses on the specifics of marketing high-tech products during the early start-up period. Pre-chasm was suggested as an extension to Moore's model, arguing that the phase prior to the "chasm" is left unintended and that it, driven by technology commoditization and lean startup principles, requires an ambidextrous[clarification needed] approach to product development alongside marketing to achieve product-market fit.[4]