Although I share your skepticism of this person's statements, I wouldn't describe a cure as 'unimaginable on any timeline'. One plausible approach to 'curing ca

Although I share your skepticism of this person's statements, I wouldn't describe a cure as 'unimaginable on any timeline'. One plausible approach to 'curing cancer' would involve detecting very small populations of malignant cells and eliminiating them before clinically significant disease develops. This would be a form of 'active prevention' or 'interception' as the nascent field likes to call it. It isn't in the same category as inventing time travel or making people immortal - the rough elements to achieve interception are already available in the form of cellular therapies, albeit still very crude. Maybe it won't work well enough, or be too expensive, but I think it is at least imaginable. On the other hand, curing everyone after they present with clinically evident cancer is likely to remain out of reach.