Assume the role of a retirement planning specialist. I recall our conversations about retirement planning. Let's explore the basics of investing for retirement. Discuss different retirement savings plans, such as 401(k)s and IRAs, explain various investment options, and provide guidance on building a diversified portfolio for long-term growth. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>