A single, context-aware AI assistant with access to various APIs will replace dozens of specialized apps for tasks like fitness tracking, to-do lists, or flight check-ins. Users will interact conversationally with their assistant, rendering most single-purpose apps redundant.

Major AI platforms are becoming "super agents" that connect to a user's software (e.g., email, YouTube) and use "skills" to perform complex, autonomous tasks. This convergence means the choice of platform is becoming a matter of user interface and integration preference rather than unique functionality.

User workflows rarely exist in a single application; they span tools like Slack, calendars, and documents. A truly helpful AI must operate across these tools, creating a unified "desired path" that reflects how people actually work, rather than being confined by app boundaries.

Apple recognizes it cannot build a world-class AI assistant like Siri in isolation. The success of the revamped Siri hinges on Apple's ability to open its closed ecosystem to third-party AI agents and external partners, acknowledging that it cannot compete on AI investment and innovation alone.

The nascent AI agent ecosystem lacks effective discovery mechanisms for third-party tools ('skills'). This creates an opportunity for curated marketplaces that help users find, vet, and even pay for high-quality, trustworthy agent capabilities, solving a key bottleneck to adoption.

To make an AI assistant feel more conversational, architect it to delegate long-running tasks to sub-agents. This keeps the primary run loop free for user interaction, creating the experience of an always-available partner rather than a tool that periodically becomes unresponsive.

The most effective application of AI isn't a visible chatbot feature. It's an invisible layer that intelligently removes friction from existing user workflows. Instead of creating new work for users (like prompt engineering), AI should simplify experiences, like automatically surfacing a 'pay bill' link without the user ever consciously 'using AI.'

The next major leap for AI is its ability to connect disparate apps and data sources (email, calendar, location) to take autonomous actions. This will move AI from a Q&A tool to a proactive agent that seamlessly manages complex workflows.

Just as you use different social media apps for different purposes, you should use various specialized AI tools for specific tasks. Relying on a single tool like ChatGPT for everything results in watered-down solutions. A better approach is to build a toolkit, matching the right AI to the right problem.