A generative adversarial network (GAN) pairs a generator that creates candidate data with a discriminator that distinguishes candidates from genuine examples. The generator improves whenever the discriminator exposes a forgery, creating a competitive learning loop. Ian Goodfellow introduced the framework in 2014, and it became closely associated with deepfakes and other synthetic media. section 1.2
The forger and the art expert
Imagine a forger painting counterfeit masterpieces while an art expert identifies the fakes. Each exposed counterfeit teaches the forger to produce a more convincing one; eventually, distinguishing generated work from genuine work becomes difficult. The same dynamic helps explain realistic synthetic videos and images of people doing or saying things they never did. section 1.2
GANs also raise practical and social concerns:
- They can support nonconsensual pornography, misinformation, manipulated media, and other convincing forgeries. section 1.2
- They make skepticism necessary because generated content can be difficult to distinguish from genuine content. section 1.2











