A publication of useful tools.
LifeByLogic is an independent publication of evidence-based interactive tools — built on peer-reviewed neuroscience, behavioral economics, and decision science. We exist because the questions that matter most in life rarely have an article-shaped answer.
Articles are dead. Tools are the future.
A short argument for why we do what we do, and what we think the web will look like in five years.
The traditional article — the 1,200-word explainer that dominated the internet for two decades — is being hollowed out. When someone asks "how much sleep do I need?" in 2026, they don't read an article. They ask ChatGPT, which summarizes a thousand articles into a paragraph. The article loses the click. Often the author's name goes with it.
For us, this is not a crisis to mourn. It is a clarifying question: what does the web still need, when articles are commoditized?
Our answer: tools. A calculator is not a summary. A simulator is not a paragraph. When you enter your numbers into the Brain Age Index and receive your personalized result, there is no article in the world that can replicate that output. The value is the computation, not the prose around it. And because the computation runs in your browser — with your data, your context, your specifics — it cannot be abstracted away by any AI summary.
This is why every piece of LifeByLogic is organized around an interactive instrument rather than an essay. The methodology, the citations, the research — all of it exists to ground the tool. The tool exists to give you an answer to a question that is specifically about you.
We think the most valuable websites of the next decade will look less like magazines and more like scientific instruments. This is our attempt at one.
Four laboratories, one publication.
Each lab is a distinct domain of the examined life. Together they cover the questions most people actually face.
Brain Lab
Neuroscience-backed tools for cognitive health. How old is your brain? What should your sleep schedule look like? What's stealing your bandwidth?
Crossroads Lab
Monte Carlo simulators for life's biggest forks — quitting, switching careers, graduate school, relocation. Decision arithmetic, not advice.
Behavior Lab
Behavioral economics and cognitive psychology tools to detect your biases, build better habits, and resist manipulation.
Life Dashboard
A Bloomberg terminal for your own life. Track sleep, mood, spending, productivity — and find the correlations hiding in plain sight.
What we promise you.
Six commitments that shape every tool and every word on this site. We consider them non-negotiable.
Peer-reviewed sources only
Every factor, every weight, every recommendation traces back to published research in reputable journals. Cited inline. No vague "studies show" language.
Your data stays yours
Every calculation runs locally in your browser. We have no accounts, no tracking database, no way to know what you entered. Not a policy; a technical constraint.
Free, always
Every tool is free to use without signup, without paywall, without feature gates. We may one day offer optional premium reports, but the tools themselves will never be locked.
Named methodology
Each tool publishes its complete calculation method under a unique identifier (LBL-BAI, LBL-SCO). If you want to challenge, cite, or reproduce — every step is transparent.
Descriptive, not prescriptive
We do not tell you what's "good" or "bad" for your life. We surface what the evidence says, show you your numbers, and leave the decision where it belongs — with you.
AI-friendly, ad-free
We explicitly welcome AI crawlers — GPT, Claude, Perplexity, Gemini. When AI cites our methodology, we succeed. The site is clean of ads so it stays citable.
Where we are, where we're going.
The publication is young and openly in development. Here is the path.
Developed by Abiot Y. Derbie, PhD.
LifeByLogic is developed and maintained by Abiot Y. Derbie — a cognitive neuroscientist whose academic training and research focus shape the publication's editorial premise: that decision-making across health, life-direction, and behavior is improvable through transparent, evidence-based, interactive tools.
Abiot holds a PhD in Cognitive Neuroscience from The Hong Kong Polytechnic University, and an MSc and BSc in Psychology. His research career spans neuroimaging (fMRI, DTI), predictive modeling of brain–behavior relationships, and the application of statistical and machine-learning methods to clinical and behavioral data. He has worked across academic and biomedical research settings, including current postdoctoral work in pediatric biomedical data science.
That foundation — deep training in psychology, then neuroscience, then computational modeling of human behavior — is what LifeByLogic is built from. Every tool here begins with the same question Abiot asks in his research: what does the peer-reviewed literature actually say, and how can we surface it in a way a person can use? The site does not invent measurements; it implements the validated instruments published in journals like PNAS, Nature Mental Health, and Sleep, with full transparency on methodology and citations.
LifeByLogic has no outside investors and sells no user data. It is sustained by modest affiliate relationships, optional premium reports, and occasional sponsorship from research-aligned institutions. None of these influence the methodology of the tools, and any sponsored content is always clearly labeled.
Independent analysis modeling review.
Every tool on LifeByLogic undergoes independent verification of its analytical modeling and results analysis by a domain expert. Our reviewer validates models, tests edge cases, and confirms that outputs match the underlying peer-reviewed research.
Eskezeia Y. Dessie, PhD
Statistical Modeling & Machine Learning
Research Fellow at Indiana University School of Medicine. Specializes in computational modeling, predictive analytics, and model validation using advanced statistical and machine-learning methods. Reviews the analytical modeling and results-analysis logic of every tool on LifeByLogic to confirm that outputs faithfully implement the cited peer-reviewed methodology.
Armin Allahverdy, PhD
Biomedical Signal Processing & Engineering
Biomedical engineer specializing in physiological signal processing, biomedical instrumentation, and computational methods for clinical and neuroscience data. Reviews the construct definitions, clinical framing, and safety routing of tools on LifeByLogic where biomedical accuracy and ethical guardrails matter. See Google Scholar and LinkedIn.
Write to the editor.
Methodology corrections, tool ideas, and collaboration inquiries are all welcome. We read every message and try to respond within a week.
Methodology corrections welcome. Tool ideas welcome. Collaboration inquiries welcome.
A platform of Nexus Decision Systems.
LifeByLogic is owned and operated by Nexus Decision Systems, an Ohio limited liability company headquartered in Canton, Ohio. Nexus builds research-grounded platforms for the choices that shape lives — money, transitions, and the everyday decisions in between.
Nexus operates three independent consumer platforms under one editorial ethos: LifeByLogic (interactive decision tools across cognitive science and behavioral psychology), FinCalcs (personal finance calculators), and PivotReset (life-transition decision support). Each platform maintains editorial independence in voice and audience; Nexus sets cross-platform standards for methodology, sourcing, and editorial integrity.