Earlier quoted context omitted.
When I was young, my family made me put all of my christmas/birthday money into the stock market. Intel was suggested by an adult family member who did not have a tech background. That made up a majority of my portfolio. The rest of my portfolio was allocated to a stock I chose, Apple. Reason for Apple: At my elementary school, everyone loved using the Power Mac G5's during computer lab. Every kid had/wanted an iPod…
it's very risky to not diversify your stock portfolio.
If you wait long enough (and you should be investing for 10+ years from now) doing things that hurt growth doesn't risk you losing money, it guarantees it. And diversification hurts growth because of transaction costs.
Still, probably better to buy SPY.