Latest research on Roundet
Trees pairs coffee and cheesecake in a Vancouver niche
Coffee and cheesecake give the Vancouver chain a distinct niche, while its financial position remains harder to assess.
Jeffery Cui2 min readTetris modes decide when suspended blocks fall
The game mode decides whether a clear shifts rows, settles blocks, or activates a special collapse.
Jeffery Cui2 min readRecipe measures depend on tools and shared knowledge
Jeffery Cui2 min readDaylight, work, and shared signals set the day
Jeffery Cui2 min readDo short walks after meals measurably change blood sugar, and how much walking have studies tested?
Short walks after meals can lower the glucose rise
Jeffery Cui2 min read- Business2 min read
Free plans pay when extra revenue exceeds their full cost
Upgrades matter only after serving costs, lost purchases, and effects on paying customers.
Jeffery CuiOctober 29, 2026 - Other2 min read
English spelling keeps history that reform must overcome
Old sounds, borrowed words, and shared habits make reform harder than writing simpler rules.
Jeffery CuiOctober 29, 2026 - Ideas2 min read
A fair decision can require different treatment
Explain which differences matter, what the rule protects, and how people can challenge mistakes.
Jeffery CuiOctober 29, 2026 - Technology2 min read
Deleting a file and erasing its bytes are different
Hard drives may retain deleted contents; SSDs can stop exposing them before physical erasure.
Jeffery CuiOctober 29, 2026 - Ideas2 min read
A rising metric can hide a goal moving backward
Rewards can improve the count while diverting effort from what the count was meant to represent.
Jeffery CuiOctober 29, 2026 - AI2 min read
Small local models need a narrow task and a fair test
Compare the exact model on your laptop against the quality bar your work requires.
Jeffery CuiOctober 29, 2026 - Technology2 min read
Cooler phones and less time full slow battery wear
Charging limits and ordinary top-ups can reduce avoidable battery wear.
Jeffery CuiOctober 29, 2026 - Finance2 min read
Early market losses make retirement withdrawals harder
The same returns can leave different balances once spending takes money out along the way.
Jeffery CuiOctober 29, 2026 - Travel2 min read
Sleeper value rests on hotel savings and usable mornings
An avoided hotel bill matters only if you would otherwise pay it.
Jeffery CuiOctober 29, 2026 - Programming2 min read
A fast server can still leave a web request waiting
Network trips, queues, and browser work can outweigh a tiny handler.
Jeffery CuiOctober 29, 2026 - Programming2 min read
SQLite lasts until writes or deployment outgrow it
Write contention, shared access, and recovery needs matter more than a universal visitor-count threshold.
Jeffery CuiOctober 29, 2026 - History2 min read
Railways made standard time useful enough to adopt
Shared timetables, telegraph signals, and public campaigning moved cities onto a common clock before national law did.
Jeffery CuiOctober 29, 2026 - Travel2 min read
Flexible flight dates beat booking-day tricks
Historical fare averages help guide a search, but no weekday or booking window guarantees the lowest price.
Jeffery CuiOctober 29, 2026 - Finance2 min read
A 1% fee can take a quarter of a 30-year balance
The charge removes money and its future growth; contributions and billing methods change the final cost.
Jeffery CuiOctober 29, 2026 - Business2 min read
Profit cannot pay bills before customers pay
Unpaid invoices, inventory, and debt can drain cash while the income statement still looks healthy.
Jeffery CuiOctober 29, 2026 - Health2 min read
Coffee needs a cutoff that accounts for dose
Eight to nine hours before bed is a starting experiment; a large dose can affect sleep much earlier.
Jeffery CuiOctober 29, 2026 - AI2 min read
AI confidence can outrun its evidence
Training can reward guessing, so check consequential claims against original sources, calculations, and tests.
Jeffery CuiOctober 29, 2026 - Science2 min read
Octopus arms share control with the brain
Local circuits organize movement, send feedback, and exchange signals directly with other arms.
Jeffery CuiOctober 29, 2026