Traditional IRAs and Bitcoin IRAs both aim to help individuals save for retirement but differ in the associated risks, rewards, and functions. Traditional IRAs offer tax-deferred contributions and growth, flexible contributions, diversified investment options, spousal contributions, and required minimum distributions. Bitcoin IRAs offer diversification, potential higher returns, tax advantages, control over investing decisions, and security. Both IRAs require low-time preference investments and are subject to the same contribution limits, rules, and penalties.

Bitcoin's scarcity property makes it a valuable, secure asset, despite its short-term volatility. The choice between a traditional IRA and a Bitcoin IRA depends on one's investment goals, risk tolerance, and financial situation.