Common mistake
Expecting a small rate gap to make a small difference
It sounds like this
“7% against 5% — that's only 2% more, so I'd end up with a bit more, not twice as much.”
Why it’s wrong
The gap is taken every year on a growing amount, so over decades it adds whole doublings.
The lesson that fixes it
Cognosc spots mistakes like this.
When you explain something in your own words, Cognosc can tell exactly which mistake you’re making — not just that you’re wrong — and gives you a short lesson to fix that one thing.