https://srivastav-ayush.github.io/writing/ Decision essays and build notes by Ayush Srivastav, filed under Travel, Tech, Education, and Tools. en Sat, 01 Aug 2026 09:00:00 GMT https://srivastav-ayush.github.io/writing/Wearable-Watch-Decision.dc.html https://srivastav-ayush.github.io/writing/Wearable-Watch-Decision.dc.html Tech Sat, 01 Aug 2026 09:00:00 GMT Twenty-eight devices across four form factors, scored on the nine things a fitness wearable can be good at. Describe your training week and the features you refuse to live without, and the page ranks the four categories for you, then ranks the devices inside the one that wins. https://srivastav-ayush.github.io/writing/Kudremukh-Trek.dc.html https://srivastav-ayush.github.io/writing/Kudremukh-Trek.dc.html Travel Fri, 26 Jun 2026 09:00:00 GMT My first big Western Ghats climb, told in order: the midnight permit fight, a night bus with no reclining seats, a tent to myself in Kalasa, 11 kilometres up through streams and roots, a summit inside the cloud, and 11 kilometres back down in a storm. https://srivastav-ayush.github.io/writing/Himalayan-Trek-Planner.dc.html https://srivastav-ayush.github.io/writing/Himalayan-Trek-Planner.dc.html Travel Wed, 01 Apr 2026 09:00:00 GMT Sixty-five Himalayan treks sorted by season, altitude, and difficulty into a four-quarter calendar. Which trail is safe in which month, what each one asks of you physically, and the order to attempt them in so that every year builds on the one before it. https://srivastav-ayush.github.io/writing/Timeplan-Dashboard.dc.html https://srivastav-ayush.github.io/writing/Timeplan-Dashboard.dc.html Tools Thu, 12 Mar 2026 09:00:00 GMT A single offline HTML file that opens every owner's own .xlsx, draws one master programme Gantt, resolves the dependencies they wrote in their own rows, and writes changes back to each source file without touching anyone else's. https://srivastav-ayush.github.io/writing/iPhone-Ownership-Strategy.dc.html https://srivastav-ayush.github.io/writing/iPhone-Ownership-Strategy.dc.html Tech Sun, 01 Feb 2026 09:00:00 GMT Depreciation modelled from resale data, the Pro premium priced against the one feature that justifies it, and affordability tested against your own income. https://srivastav-ayush.github.io/writing/Tap-to-Track.dc.html https://srivastav-ayush.github.io/writing/Tap-to-Track.dc.html Tools Wed, 10 Dec 2025 09:00:00 GMT Double-tap the back of an iPhone and a purchase lands in a Google Sheet you own. How the shortcut is wired, why the amount field does arithmetic without eval(), and how to set the whole thing up for yourself. https://srivastav-ayush.github.io/writing/ISB-vs-IIM-Cost-Comparison.dc.html https://srivastav-ayush.github.io/writing/ISB-vs-IIM-Cost-Comparison.dc.html Education Tue, 05 Aug 2025 09:00:00 GMT Fees, foregone salary, and loan interest for ISB's one-year MBA set against the two-year programmes at Ahmedabad, Bangalore, and Calcutta. https://srivastav-ayush.github.io/writing/GMAT-vs-GRE-Decision.dc.html https://srivastav-ayush.github.io/writing/GMAT-vs-GRE-Decision.dc.html Education Tue, 01 Jul 2025 09:00:00 GMT Section by section through the GMAT Focus Edition and the GRE — scoring, adaptive design, question types, and where each exam punishes a different weakness.