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Once a week: 5 things worth your time, not your feed. No noise, unsubscribe anytime.
1 story, 1 idea, 1 discovery, 1 tool, 1 book.
The Humanevi newsletter
Once a week: 5 things worth your time, not your feed. No noise, unsubscribe anytime.
1 story, 1 idea, 1 discovery, 1 tool, 1 book.
See the real yearly cost difference between upgrade cycles.
Annual cost, upgrading at this pace
$375
Annual cost, keeping it twice as long
$188
Annual savings by waiting longer
$188
Estimate only. Does not account for repair costs or feature changes over time.
This compares what you spend per year upgrading a phone or other device often against what you would spend keeping it twice as long. It suits anyone tempted to always own the latest release who wants to see the real price of that routine, factoring in the resale value of the old device.
First it computes the net cost of each upgrade: the new device's price minus the old one's resale value (never below zero). Dividing that by the years between upgrades gives the annual cost at your current pace. For the keep-longer scenario, the same math uses double the years. The annual savings is the difference between the two costs. Both scenarios use the same device price and resale value.
A new phone costs $4,000 and the old one resells for $1,000, so each upgrade costs $3,000 net. Upgrading every 2 years means $1,500 a year. Keeping it for 4 years means $750 a year. Waiting longer saves $750 per year.
A simple estimate. It does not include repair costs, battery wear, feature changes over time, or the drop in resale value if you wait longer, which is often larger. Use realistic resale values for your case.
An Alexa-compatible smart speaker brings voice controls into a room. A practical category guide to help compare options before choosing a specific listing.
A streaming stick adds app-based video playback to a compatible television. A practical category guide to help compare options before choosing a specific listing.
A basic activity watch can put steps and daily reminders on the wrist. A practical category guide to help compare options before choosing a specific listing.
A portable speaker brings wireless audio to different spaces. A practical category guide to help compare options before choosing a specific listing.
Andrew Hunt and David Thomas's book of practical advice on craft, tooling and attitude for professional programmers.
Frederick Brooks's essays on managing software projects, drawn from his experience leading the IBM System/360 operating system effort.
Martin Kleppmann's guide to how databases, replication, transactions, and batch and stream processing actually work under the hood.
Entendendo algoritmos, by Aditya Y. Bhargava: a technology and computing book in a Portuguese-language edition; check the edition before buying.
Digital infrastructure increasingly sits beneath ordinary life and becomes visible when it fails.
You do not need to replace an entire home network to begin. A phone, comparable tests and small placement changes can reveal the weakest points. First find where the weakness occurs, then choose the least complicated change that addresses it.
A sensible security strategy protects identity, money and files without making ordinary tasks impossible. The key is identifying relevant threats and applying appropriate layers of protection. Security is a continuing process of prevention, detection and recovery, not permanent immunity.