First, read “In Plato’s Cave,” the first chapter from Susan Sontag’s 1977 book On Photography.
Next, read the following three articles that each, in their own way, address the alleged “death” of photography.
Einsten’s Camera: How one renegade photographer is hacking the concept of time (Joshua Hammer at medium.com)
Goodbye, Cameras (Craig Mod at The New Yorker)
Toward a Hyperphotography (from Fred Ritchin’s book After Photography)