Research · Tools · Engineering practice
Build with a clearer understanding of what your actions make possible.
Reachability Labs studies how actions and commitments change what remains possible—and develops tools and practical methods for finding, preserving, and creating workable paths forward.
For engineering teams: decision tools and focused investigations of tests, changes, and technical work whose next move is unclear.
Move through rising pressure. Change process strength. See how a goal can remain possible while a particular process loses access to it.
Read The Builder’s View, listen to the introduction, or explore the idea.
A decision before the result
A team has one qualified prototype left. A destructive thermal test might tell them whether to proceed to the next build. It will also consume that prototype—even if the result cannot be interpreted.
Invented example
What result would support the next build? What would a failure or an inconclusive result cause the team to do?
After the test, the same article cannot answer a different question. The loss happens whether the result is useful or not.
Could a second article, fixture check, witness material, or another method help? Which possibilities need evidence before the team commits?
The useful result may be a better test. It may be a question to resolve first. Work through your own decision with the Test Card.
Making something possible
Choices can close paths and create new ones. Learning a technique, preserving a configuration, developing a capability, or changing the sequence can alter what is reachable from here.
The aim is to understand what a commitment buys, what it uses up, and what would justify continuing or changing course. Sometimes the right move is to preserve an option. Sometimes it is to commit deliberately.
A goal, a present state, and a way forwardThree ways into the work
Use a tool
Write down what results would change, what an action consumes, and what could still be preserved. Keep a useful record for the review you already have.
Open the browser Test CardGet all three free worksheetsBring a decision
Bring the tests, drawings, changes, and competing explanations around one decision. A focused investigation connects the available evidence to the options and next action.
See the investigation and deliverablesInvestigate the research
Read the studies, use the software, and explore interactive explanations of how a process’s history changes the futures it can still reach.
Papers, software, and interactive figuresThe scientific foundation
Published experiments sample continuations of reasoning traces to measure how access to a target answer changes, and whether a targeted edit can reopen it under specified conditions.
Read the AI researchConstraint-solving studies examine the distinction between a solution existing and a particular process retaining a route to it.
Inspect the SAT benchmark and recordsThe computational findings motivate the engineering tools. Whether those tools improve decisions in other teams needs evidence from actual use.
See the application and its limitsGraph coloring provides a second calibration setting. Scheduling remains an extension under investigation; discuss a research connection.
Use the published ReachScan software. Explore the trajectory atlas and trace visualizer.
About the lab
Reachability Labs was founded by Michael Richard Nothem, a process and product engineer whose work spans physical R&D, process diagnostics, computational research, and engineering decision tools.
The work grows from a recurring question: how can we understand what a process is doing to its own future while we can still act on that understanding?
Research gives that question precise forms. Explanation makes it accessible. Tools and technical investigations bring it into decisions people face.
Start a conversation
A brief, non-confidential description of the decision, desired outcome, and available evidence is enough to start discussing fit.
Email MichaelPrepare an optional scope noteDiscuss a computational system, a research connection, or what happened when you used a worksheet. Useful results include questions it missed and work it added.
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