While direct vector space communication between AI agents would be most efficient, the reality of heterogeneous systems and human-in-the-loop collaboration makes natural language the necessary lowest common denominator for interoperability for the foreseeable future.

As models become more powerful, the primary challenge shifts from improving capabilities to creating better ways for humans to specify what they want. Natural language is too ambiguous and code too rigid, creating a need for a new abstraction layer for intent.

The current state of AI development parallels early human evolution. Just as the invention of language enabled a step-function change in human collaboration and intelligence, AI agents now require their own 'language'—a set of shared protocols—to move beyond individual tasks and unlock collective problem-solving.

Cisco's OutShift incubator focuses on enabling distributed systems rather than building monolithic ones. Their strategy for both AI and quantum computing is not to create the most powerful single agent or computer, but to build the network fabric that connects them all.

While messaging platforms like Slack can serve as an interface for human-to-agent communication, they are fundamentally ill-suited for agent-to-agent collaboration. These tools are designed for human interaction patterns, creating friction when orchestrating multiple autonomous agents and indicating a need for new, agent-native communication protocols.

Today's AI agents can connect but can't collaborate effectively because they lack a shared understanding of meaning. Semantic protocols are needed to enable true collaboration through grounding, conflict resolution, and negotiation, moving beyond simple message passing.

A more likely AI future involves an ecosystem of specialized agents, each mastering a specific domain (e.g., physical vs. digital worlds), rather than a single, monolithic AGI that understands everything. These agents will require protocols to interact.

Current AI agents operate in isolation without high-level protocols for collaboration. This creates a critical gap for an 'internet of cognition,' which would enable agents to share context, understand intent, establish trust, and collectively solve problems, moving beyond siloed, human-mediated outputs.

The future of AI is not just humans talking to AI, but a world where personal agents communicate directly with business agents (e.g., your agent negotiating a loan with a bank's agent). This will necessitate new communication protocols and guardrails, creating a societal transformation comparable to the early internet.