As a manager you would have very good reason to be skeptical about Sneijder and Robben, because it is far more common for players to flop once they have flopped once, rather than to bounce back. But here there is also the mitigating factor that flopping at Real Madrid is less informing, because everyone knows that club chews and spits out players without regard for the fact that many of the discarded ones are still very good, despite failing by RM's standards. On top of that, Robben had already had a solid career prior to this, and one or two flop seasons at RM doesn't change that. And last of all Sneijder and Robben weren't really flops at all, they were superseded by other players at a club where the competition is merciless, but nevertheless playing quite well when given the chance. Selling them was a strategic decision to bet on one player over another, not a desperate attempt to mitigate a flop.
I think your argument is self defeating. You said that past performance isn't a good predictor of the future, therefore your statement about Amauri's capability of scoring 20 goals is perfectly reasonable. Then you say that you made this judgment based on his many qualities, such as "aerial ability" if I remember correctly, which are precisely based on his past performance. How did you gain this knowledge of his ability if not from his past performance? And if past performance is no basis for prediction then you have no basis for saying that he has this aerial ability, because it's merely an observation from the past.
Two points here. One, it doesn't have to be Real Madrid. I just mentioned them because they were easiest to remember. There are many cases of players who have been flops but have later been showed confidence. The reason is simple, you don't have to have scored 20 or more goals per season for people to think that you
could do it.
I think this highlights the entire point of my argument. You and other members here are saying, 'You can't possibly say that someone can score over 20 goals if he hadn't done so already'. Clearly, this statement is ludicrous. I remember when I first saw Messi playing, I think it was in 06, I was sure this guy would one day score over 20 goals per season.
He had never done so. He was too young, anyway. But his talent was a good indicator that he has the capacity to do so.
I'm aware that Amauri doesn't even come close to Messi talent-wise, and that is an understatement. This brings me to my second point.
I hope we have established that you don't need to have scored 20 goals in the past in order to encourage people to believe that you will do so in the future.
Second, you are classifying past statistics with past information; you are putting them in the same group. Which is why you assume my argument is self-defeating. The problem is not that I'm contradicting myself, but that you are making an invalid assumption.
My argument was that past results(goals per season) is not a good indicator for predicting the future. Meaning that the fact that Amauri never scored over 20 goals per season is not a good reason to say that he never will. However, if you watched Amauri play and believed that he has the right attributes to score many goals, you could easily make a statement about what could possibly happen.(this is not the same as a prediction.)
You have not convinced me that this is not an empty statement. What exactly would it mean that someone "could" become the president and how would you judge if this statement was correct or not?
As I see it, the only reasonable way to judge the validity of a "he could have done it" statement is in hindsight, examining whether his professed competency allowed him to come close to his goal, and if not whether there were mitigating circumstances (eg. injury, for an athlete) that prevented it.
Otherwise how else could you make it falsifiable?
And by these standards it doesn't look remotely likely at the moment that Amauri will in fact score 20 goals or even 15, which would make your judgment seem a good one.
In a country where the president has to be white, male, and Christian. It will be impossible to say that Dikembe Matumbo could be the president. This is a very simplified example but you get the point. When I say Amauri could be a good striker, I'm just saying he has what it takes. I'm not saying that he will be a good striker. And not anyone can be a good striker. Some players lack even the most basic qualities a striker should have and therefore cannot be score over 20 goals a season.
How can it be falsifiable? That's exactly how it is different from making a prediction. A prediction can only be falsified in hindsight while the statement I made is simply our of purely subjective reasoning. It can be falsified only if you give me reasons why someone with Amauri's physique, speed, fitness, positioning cannot finish the season with 20 or more goals.
You don't need to use numbers for that.