The Hidden Costs of the Bandwidth Tax: How Tunnel Vision Leads Clients to Miss Critical Messages
By Mike McCaman, Clarity Solutions Group
When agencies reach out to clients—especially those living in poverty or under chronic stress—critical messages often go unnoticed. This isn’t just a matter of distraction or neglect.
As Sendhil Mullainathan and Eldar Shafir outline in their book Scarcity: Why Having Too Little Means So Much, scarcity itself fundamentally changes the way people think.
Scarcity creates what the authors call “tunneling.”
When someone is struggling to meet immediate needs—like paying rent, keeping the lights on, or finding childcare—their mind becomes intensely focused on those urgent problems. This tunnel vision is a physiological response: the brain’s cognitive bandwidth is consumed by pressing concerns, leaving little room for long-term planning or attention to anything outside the crisis at hand.
The result is a “bandwidth tax”—a reduction in mental capacity for executive function and fluid intelligence.
This has real consequences for client communication:
- A client misses a deadline to submit paperwork for a benefit renewal because the reminder email is lost among urgent messages about rent and utilities. The result: a lapse in benefits and increased stress.
- An agency sends a critical update about a service change via email, but the client, juggling multiple jobs and family needs, rarely checks email. The message goes unseen, leading to confusion and frustration.
- A client receives a long, jargon-filled letter about a new program but, overwhelmed by immediate financial worries, sets it aside and never returns to it—missing out on valuable support.
These breakdowns are not just about missed messages—they are the hidden costs of the bandwidth tax imposed by scarcity. When clients are forced to focus on immediate needs, their ability to process and act on important information is genuinely diminished.
What Can Agencies Do to Give Bandwidth Back to Clients?
cognitive load on clients and help ensure critical messages get through:
Data Hygiene:
Keep client contact information up to date and preferences recorded. Clean data ensures messages reach the right person,
in the right way, at the right time. For example, regularly verify phone numbers and preferred communication channels.
Multi-Channel Outreach:
Don’t rely on a single method. Use text messages, phone calls, emails, and even physical mail to reinforce key messages.
For instance, a text reminder about an upcoming appointment can cut through the noise more effectively than an email alone.
Timing:
Be strategic about when you send messages. Avoid sending important notices late at night or during known periods of high stress (like the first of the month for clients managing bills). Consider sending reminders at multiple intervals—immediately, a few days before, and the day of an event or deadline.
Simplify and Prioritize:
Use clear, concise language and highlight the most urgent action needed. Break complex information into smaller, manageable pieces,
and use bullet points or bold text to draw attention to deadlines or required actions.
Feedback Loops:
Encourage clients to confirm receipt or understanding of messages.
This could be as simple as replying “yes” to a text or clicking a confirmation link in an email.
