From:    Didier Kryn <kryn@???>

Date:    Mon, 13 Oct 2025 17:25:49 +0200

> There's no reason to put thouthands of files per directory, ...

Yes, when possible, work in memory rather than in a file system.
Contemporary machines have GiBs of memory. The principal difficulty
is just revision of old implementations designed to work in the file
system.

The two notations mentioned are isomorphic.
/home/antony/taxes/income/2024
/home/antony/taxes/income/2025
/home/antony/taxes/property/2024
/home/antony/taxes/property/2025

/home/antony/TaxesIncome2024
/home/antony/TaxesIncome2025
/home/antony/TaxesProperty2024
/home/antony/TaxesProperty2025

Eg., to go from "s/income" to "sIncome" remove "/" and upcase "i".

For "sIncome" to "s/income" change "sI" to "s/i".

Programable. As usual, there are complications such as numerals not
having case. As usual, complications are solvable.

> There's no reason to put thouthands of files per directory, but
> lazyness.

An advanced topic I haven't tackled. Wikipedia has this.
https://en.wikipedia.org/wiki/Lazy_evaluation

Regards,                  ... P.

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