Archived page
This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.
Go to PropertyLogic
Thinking-load tools for focus, context switching, decision fatigue, and deep-work capacity. Use them to make hidden mental strain visible.
A system monitor for the brain and the life-logistics layer sitting above it. Every tool is closed-form math — no AI, no opaque weighting, no vibes. Inputs persist locally.
Cognitive Boost circuits
Use these tools inside a 15-minute scored routine.
Circuits chain loose tools into practice stations with a timer, local score history, improvement/drop trend, and daily leaderboard for full completions.
I. Cognitive Throughput
The four meters that govern what your brain can actually process per day — input efficiency, switching cost, willpower drain, and the focus decay curve.
Signal-to-Noise · Content Throughput
Measure how much of your daily information intake converts into actionable decisions. Throughput-pipe visual with clogged / flowing state.
Task Switching Tax · Context Overhead
Calculate the hours per day you lose to juggling concurrent projects. Each additional context costs 20% of remaining capacity — CPU-usage view.
Decision Fatigue · Willpower Battery
Model remaining willpower across the day. Every decision draws from the same finite reserve — trivial × 1, moderate × 5, heavy × 10.
Deep Work Capacity · Focus Horizon
Exponential decay model of focus quality. e^(−0.01×min) half-life ≈ 69 minutes — the horizon shows how long until quality drops below usable.
II. Logistical Mobility & Lifecycle Logic
When to move, when to retrain, when to cut the subscription stack, and which relationships are net-positive — the big life-structure decisions, math-first.
Geographic Arbitrage · Migration Horizon
Calculate the break-even month for a move. Monthly gain = (income − cost) at destination minus origin. Horizon visual with plane marker.
Upskill ROI · Investment Recovery
Calculate the true payback window on a course or bootcamp, including opportunity cost of study hours. Recovery progress bar with 24-month reference.
Subscription Purge · Leak Detection
List every recurring subscription, see the monthly bleed and the 10-year lifetime cost. Sinking-ship visual with drip animations. Pipes recovery into Runway Zero.
Social Utility · Balance of Connection
Weigh support and positive energy against conflict and drain. Balance-scale visual with tilt indicator. Signals pattern, not judgement.
Logic topics
Guides that connect the tools in this suite — how the numbers interact and when to stack them.