You certainly have advantages and disadvantages. I could say a lot about the different situations professionals and individuals are in, and I'd be happy to share any thoughts if you're interested. That said, I'd like to point out two things:
1. Most individuals do consistently worse than the market (so do most mutual funds, actually)
2. Most of Buffett's major successes, especially the early ones, have had nothing to do with his predictions of how a company would perform in the future. They were based on the difference between a company's current assets vs. its current stock price. Eg one of his major successes was in buying shares of Sanborn Map company when Sanborn had assets of $65 per share, but shares only cost $45 each [1].
It's still possible to invest using this method-known as value investing-but it's much harder today. The reason is that information is much more freely available. Eg in the Sanborn example above, it took Buffett a significant amount of research to find Sanborn and to realize that they were undervalued. Today all of that information is available to anyone online.
1. Most individuals do consistently worse than the market (so do most mutual funds, actually)
2. Most of Buffett's major successes, especially the early ones, have had nothing to do with his predictions of how a company would perform in the future. They were based on the difference between a company's current assets vs. its current stock price. Eg one of his major successes was in buying shares of Sanborn Map company when Sanborn had assets of $65 per share, but shares only cost $45 each [1].
It's still possible to invest using this method-known as value investing-but it's much harder today. The reason is that information is much more freely available. Eg in the Sanborn example above, it took Buffett a significant amount of research to find Sanborn and to realize that they were undervalued. Today all of that information is available to anyone online.
[1]: http://en.wikipedia.org/wiki/Warren_Buffett#Business_career