// Calcuja Blog

Numbers, explained.

In-depth guides on compound interest, mortgages, BMI, H-Index, AI risk, longevity, and more. Knowledge that turns raw numbers into better decisions.

AI risk survey 2026
Research
P(doom) Survey 2026: AI Risk Probability Estimates

What probability do AI researchers assign to existential risk? We aggregated survey data from leading AI safety researchers.

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Fantasy currency index 2026
Research
Fantasy Currency Index 2026: Real-World Value of Gold

How much is 1 Gold worth in Skyrim, WoW, D&D, The Witcher and Elden Ring? Converted to USD using in-game pricing data.

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Metabolic BMI reclassification 2026
Research
BMI vs Metabolic BMI 2026: How Often Does BMI Misclassify?

Standard BMI misclassifies many people. We analysed how often metabolic BMI reclassifies individuals into different risk categories.

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What is a good H-Index
Academic
What is a Good H-Index? Benchmarks by Field & Career Stage

What counts as a strong H-Index varies by discipline and career stage. Here are the benchmarks that actually matter.

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H-Index vs G-Index
Academic
H-Index vs G-Index: Which Metric Should You Use?

Both measure research impact — but they reward different types of output. Here’s how to choose.

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What is P(doom)
AI Risk
What is P(doom)? AI Existential Risk Probability Explained

P(doom) is the probability of catastrophic AI outcomes. Here’s what it means and why researchers disagree so sharply.

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60 Years of Wrong AI Predictions
AI Risk · New
60 Years of Wrong AI Predictions: Why Expert Forecasts Keep Failing

From Simon (1958) to Yudkowsky (2021): every major AI timeline prediction was wrong. What this means for P(doom) estimates today.

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Expert P(doom) estimates
AI Risk
Expert P(doom) Estimates: A Comprehensive Comparison

How Yudkowsky, Hinton, LeCun, and other leading AI researchers assess existential risk — side by side.

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AI alignment methods
AI Safety
AI Alignment Methods Explained: RLHF, Constitutional AI & More

A clear guide to AI alignment methods: RLHF, Constitutional AI, debate, interpretability, and how they make AI safe.

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Einstein H-Index comparison
Academic
Can You Compare Einstein to Modern Researchers Using H-Index?

Einstein’s H-Index ranges from 4 to over 100 depending on the database. We analysed his citation impact across major databases.

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Good H-Index for professor
Academic
What Is a Good H-Index for a Professor? 2026 Benchmarks

What H-Index do you need for Assistant, Associate, or Full Professor? 2026 benchmarks by field and career stage.

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Good H-Index in medicine
Academic
Good H-Index in Medicine? 2026 Benchmarks for Researchers

H-Index benchmarks for medical researchers: what is competitive for clinical, surgical, and research-focused careers.

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