Yeah, for sure.
If a an above average player gets hot and gets Pujols ratings, you would then have to perform worse with higher ratings to drop back down to normal, which logically doesn't make a tone of sense...the logic would seem to indicate that as long as you didn't change anything, you would stay hot or continue to get hotter.
As somone said about Fielder...if he has 90 power and gets cold and drops to 75 or 80 power, it then becomes harder and harder to hit HR's, which makes it seem like it would be hard to get him back to just his normal ratings.
It just seems that the law of averages would automatically make for hot and cold streaks. As a .300 hitter, you are going to have streaks of .350 or .400 and streaks of .150 or .200, but over the course of the season, you are going to come close that that average.
Again, if you flip a coin (50/50), you are going to have periods hit flipping 4,5 or 6 heads in a row and vice versa with tails. This is basically what happens during these hot and cold streaks.