Sell monthly
You sell enough each month to cover spending after income. Simple. Legible. Also a little painful, because the principal goes down as the withdrawals happen.
Borrow against
You borrow against assets marked as borrowable and let the debt grow at the borrowing rate. It can preserve exposure, but the rate and collateral limit do not care about your conviction.
Borrow & sell
You borrow while collateral supports it, then sell assets to repay debt and keep going. This is the messy middle, which is often where real plans live.
Same stack, different runway.
Each model uses the same inputs: assets, growth rate, monthly spend, income, inflation, and optional monthly investments. The only thing that changes is how the calculator fills the gap between income and spend.
When selling wins
Selling can make more sense when borrowing costs are high, collateral is jumpy, or you would rather have a clean plan than maximum exposure.
When borrowing can extend time
Borrowing can extend freedom time when asset growth stays above the borrow rate long enough. The calculator makes that assumption visible, which is healthier than hiding it inside a slogan.