Watch two years of the same money.
Tom and Emma get the exact same deposits.
Twenty-four months, from $2,400 to $18,200. They add up to .
That is a month on average. Tom spends exactly that.
It feels responsible. It is the number most budgeting advice would give him.
Tom is below $0 in of 24 months.
His worst point is . The average was never wrong. It just shows up all at once, months later.
Emma spends her floor: .
Her floor is the lowest three-month average in her record. Same deposits, a different number to live on.
Emma is below $0 once.
Month 1, by . After that her buffer, , covers every bad stretch, and what's left over keeps growing.




