Debt isn't inherently bad; it can be a powerful financial tool. By taking on low-cost debt like a mortgage, you can invest that capital in opportunities, such as the S&P 500, that are likely to generate a return greater than the interest owed, effectively creating wealth.

Not all debt is negative. Using leverage to acquire assets that generate returns—like real estate, inventory, or business investments—is a smart wealth-building tool. Conversely, financing depreciating lifestyle items ('flexing') creates a financial hole that's nearly impossible to escape.

The traditional 30-year mortgage for a primary residence is a suboptimal wealth-building tool. A more effective strategy involves securing long-term, non-callable debt to purchase productive, cash-flow generating assets, rather than tying up capital in a personal home.

Paying off high-interest debt like credit cards offers a guaranteed, risk-free return that is impossible to match in public markets. Therefore, every extra dollar should go towards eliminating this debt before considering lower-return activities like investing in a diversified portfolio (est. 5% return).

Wealthy people don't avoid debt; they use it as a tool called 'leverage'. They borrow money at a low interest rate to invest in assets that generate a higher return, effectively profiting from the spread.

As Mark Cuban advises, eliminating debt with a 23% interest rate is financially equivalent to earning a guaranteed 23% return on that money. Before seeking gains in volatile markets, the most certain and impactful financial move is to stop paying high interest to lenders, effectively locking in that return.

Early-stage businesses can strategically leverage the 30-day interest-free period on credit cards as working capital. By ensuring customer acquisition costs are recouped within that window, your credit limit effectively becomes your advertising budget without incurring interest or debt.

Instead of paying cash for their mansion, Beyoncé and Jay-Z took a low-interest mortgage. This freed up capital to invest in assets like the S&P 500, which historically provides returns that significantly exceed their mortgage interest rate, creating a net gain on the borrowed money.

Credit cards aren't inherently good or bad; they are powerful tools. For disciplined individuals, they build credit and offer benefits. For the undisciplined, they become a debt trap. The problem isn't the tool, but the user's tendency to spend to fill emotional voids or impress others.