Note
July 11, 2026
2 min read
I Asked to Borrow Their Phones. The Pause Said Everything.
By Cristiano Pierry
As personal AI agents become embedded in daily work, trust, portability, security, and resilience become the real product challenge.

First the Phone. Next, the AI Agent.
This week, my phone was unavailable. Not lost. Not broken. Just tethered to my computer while I used it to develop and evaluate a new algorithm. For long stretches, it was effectively in a committed relationship with my laptop.
That created a surprisingly practical problem.
We still call it a “phone,” which now feels almost quaint. Mine is also the key to my car, my map, my camera, my wallet, my connection to the web, and my safety net when I need to reach someone.
So when I headed out with my family, and later drove my older daughter to the airport, I asked my wife and younger daughter whether I could borrow one of their phones.
Neither was particularly eager to part with it.
I am sure they would have agreed if I had pressed the issue. But the initial hesitation was revealing. I was not really asking to borrow a phone. I was asking to borrow their keys, wallet, camera, calendar, map, communication system, and emergency lifeline, all at once.
Technology has a way of entering our lives as a convenience and quietly becoming infrastructure. I have been thinking about this as I spend more time with AI agents.
My own agent, whom I call Bob, has learned quite a bit about how I work. Bob understands my projects, preferences, recurring questions, and some of the context that would otherwise live only in my head. He began as a useful tool, became a collaborator, and is slowly becoming part of my personal operating system.
Today, losing access to my phone feels disorienting. In the not-too-distant future, will losing access to our personal AI agent feel the same way?
Perhaps the most consequential technologies are not the ones that amaze us on day one. They are the ones that make themselves useful, earn our trust through repetition, and eventually become difficult to imagine living without.
The product challenge, then, is not only to make agents more capable. It is to make them trustworthy, portable, secure, and resilient, especially once people begin depending on them.
For now, I solved my technology-dependence problem in the most predictable way possible: I bought more technology, in the form of a second phone dedicated to software development, so my primary phone can remain available for everything else, including, occasionally, making calls.
Bob, however, appears to be settling in.
#ArtificialIntelligence #AIAgents #Technology #ProductDevelopment #FutureOfWork #Personalization
This writing reflects my personal perspectives on product management, AI, and content discovery. It does not represent the official position of my employer or any affiliated organization.