The document discusses the evolution of intermediary liability law over three waves from the 1990s to the present. Current law is experiencing an identity crisis with conflicting rules and minimal practical guidance. The first wave established broad immunity under the US Communications Decency Act but a notice-and-takedown regime in the EU. The second wave sought nuance through national case law and rights-based discussions. The third wave saw a collapse into fragmented, fact-specific analyses in different legal areas like copyright and defamation. Back-to-basics approaches aim to clarify definitions and notice obligations through horizontal frameworks. Key issues involve balancing regulation, governance, and intermediaries' neutral roles.