For years, facilitators like me have structured training in roughly 90-minute segments for a simple reason: it is difficult for people to stay fully focused, process new ideas, and retain information over long stretches of time. Breaking learning into shorter blocks helps participants stay mentally engaged and gives them a better chance of absorbing what they hear. The idea of 90-minute focus cycles has also been popularized by neuroscientists such as Dr. Andrew Huberman, who frequently discusses how the brain naturally works in concentrated bursts of attention.

But attention span alone does not explain the rise of shorter learning formats.

A deeper reason short learning sessions have become so common is that corporate development itself has quietly changed. In the past, organizations treated training like education. People stepped away from their work for a period to focus on learning. Multi-day leadership programs were common, and development was seen as something that happened outside the daily flow of work.

Today, learning is designed very differently.

A 60- to 90-minute session appears on the calendar between other meetings. Participants attend while still responsible for ongoing deadlines, decisions, and team demands. When the session ends, they return immediately to operational work.

Once we acknowledge this shift, the design challenge becomes clearer. If learning must live inside the workday, it must be focused, practical, and immediately usable.

Yet the rise of short learning formats has created a subtle trap.

Because the session is only 60 or 90 minutes long, it feels efficient. Leaders and participants often assume that the limited time automatically makes the session a good use of time.

But the length of a session does not determine its value. Ninety minutes can be an excellent investment of time—or a complete waste of it.

If a session sparks insight, reflection, and action, 90 minutes can drive real behavior change. If it only delivers forgettable information, the short duration doesn’t make it valuable.

Many brief learning sessions unintentionally become what could be called learning theater. The organization can point to the training, participants attend the session, and everyone feels that development has occurred. But nothing actually changes.

The difference between learning theater and real development is straightforward: did behavior change afterward?

If the answer is no, the session may have been interesting or even inspiring, but it was not learning. Real learning shows up later, in conversations, decisions, and actions.

For short sessions to avoid becoming learning theater, they must focus less on delivering information and more on prompting action in the days and weeks that follow.

A 90-minute workshop rarely has enough time to fully teach a complex leadership skill from the beginning. Skill development almost always requires practice, feedback, and repetition over time. The real value of short sessions is something different: they activate learning that already exists but has gone dormant.

Most professionals have been exposed to leadership frameworks, communication models, coaching techniques, or feedback principles many times over the course of their careers. What they often lack is not awareness, but activation.

A well-designed short session brings those ideas back to the surface and encourages people to try them again in real situations. When used this way, short learning sessions can become powerful catalysts for behavioral change and skill adoption.

And the time constraint can be an advantage.

Shorter sessions fit more easily into crowded calendars and can increase participation rates. In-class energy tends to remain higher because there is no room for drift. Participants are less likely to feel overwhelmed and more likely to leave with one or two ideas they can apply immediately.

But only if the time is used well.

Several years ago, a client asked me to create a series of refresher sessions for a group of emerging leaders. These managers had completed a comprehensive management training program more than a year earlier. My client suspected, correctly, that many of the concepts had faded over time.

This is hardly unusual. Learning decay is real. If new skills are not applied soon after learning them, retention drops rapidly. Without reinforcement, even valuable ideas gradually disappear.

Unless participants are exceptionally diligent about revisiting material on their own, most people apply only a handful of the concepts they initially learn. The rest quietly fade into the background as daily responsibilities take over.

The goal of the refresher sessions was not to introduce anything new. Instead, the objective was to help leaders recall and strengthen the concepts they had already encountered.

We designed a series of eight virtual 90-minute sessions that revisited core leadership topics such as coaching conversations, performance management, and motivation. Each session focused on a narrow skill set and included discussion, reflection, and practice.

Rather than overwhelming participants with additional theory, we connected the concepts directly to real situations they were currently facing with their teams.

Participants appreciated the follow-up. They valued the acknowledgment that leadership development does not end after a single class. And they especially appreciated the manageable format.

What the experience reinforced for me is that short learning opportunities work only when every minute is intentional.

Three design principles make the difference.

First, ensure tight focus.

A 60- to 90-minute workshop should concentrate on one or two clearly defined skills. Asking participants to absorb broad concepts or large frameworks within such a short window is unrealistic. When sessions attempt to cover too much, participants retain little to nothing.

A useful rule is this: if people leave with five new behaviors to try, they will likely try none of them. If they leave with one specific behavior to experiment with, the likelihood of follow-through increases dramatically.

Second, design for interaction.

Adults rarely learn effectively through passive listening alone. Information transfer is not the same as learning. Real learning requires participation, reflection, discussion, experimentation, and feedback.

In a 90-minute session, engagement might include breakout discussions, reflection questions, short case studies, or brief skill practice. Even simple elements such as polls or scenario analysis can dramatically increase retention and relevance.

Participants should be doing something with the content, not simply consuming it.

Third, utilize a skilled facilitator.

A great facilitator does more than deliver content. They create engagement.

They establish an environment where participants feel comfortable sharing experiences, asking questions, and exploring different perspectives. Through thoughtful questions and guided discussion, they move the group beyond surface-level conversation toward practical insight.

Skilled facilitators also read the room. They notice changes in energy, hesitation in responses, or emerging points of tension, and they adjust accordingly.

Sometimes an unexpected issue surfaces during discussion that clearly affects individual or team effectiveness. A skilled facilitator recognizes the moment and pivots, without losing the session’s purpose. These moments often accelerate learning because they connect the material directly to real work.

Even with excellent design and facilitation, however, short learning sessions cannot promise miracles.

Behavior change rarely happens after a single exposure to an idea. Skills develop through repetition, experimentation, feedback, and reinforcement over time.

For that reason, short sessions are most effective when they are part of a broader ecosystem of development.

A session might introduce or revisit a concept. A manager might follow up with a coaching conversation. A team might discuss the idea in a staff meeting. Participants might revisit the topic again in a later session.

Over time, these touchpoints build on one another.

So, can someone learn something meaningful in 90 minutes?

Yes, if the learning is designed with intention and an understanding that its value is not determined by the number of minutes. It is determined by how those minutes are spent and what they produce.

Ninety minutes that sparks insight and action is a wise investment. Ninety minutes that simply fills time is just another meeting.

The goal, therefore, is not simply to design short training. It is to design 90 minutes that truly matters.