Matthew Snyder, CEO of ResponsiveAds, discusses the need for responsive advertising to address challenges in the digital advertising industry. Standard banner ads have very low click-through rates. Responsive ads can optimize ad creative across different screen sizes using either swap or stretch approaches. Swap uses different creatives for each size, while stretch adapts a single creative. Responsive ads allow brands to tell stories across devices and could achieve better results than traditional digital ads. Snyder demonstrates building a responsive ad and argues it can simplify processes and increase mobile revenue for publishers and brands.