Daniel : I didn’t know this one

Pierre : thank you for your excellent suggestions. I have added power decloupling, differential transmission and fuses all over my code. It looks like it is now bulletproof and will be able to run for decades without any glitch.

- power decoupling: declare at least one variable in every function you write and initialize it to a non-null value: this will create a small local power reservoir. In big functions, you may need two or more such variables, scattered at regular intervals throughout the source code.
- differential transmission (more noise immunity) : replace

int f(int n) { return n }

with

int fa(int n) { return n; } int fb(int n) { return -n }
int f(int n) { return (fa(n) - fb(n)) / 2 }

- fuses : protect sensitive/expensive functions from bogus/dangerous input

int intfuse(int n) { if (n < 1000000000) return n; else return 0 }
int f(int v) { v = intfuse(v); /* … */ }

(ideally the fuse should be placed in a separate dynamically loaded object file for easier
replacement in the field)

Your code will be even more tolerant to power fluctuations and noise!

> I encourage everyone to do the same thing, in every programming language.

Even if ground planes and intermediate registers actually do something in C, I doubt it will work in Python or Ruby