I appreciate good criticism, and you bring up an important point (which the digital currency communities have solved so far in an ad-hoc manner using "oracles", look it up if you aren't already familiar with it. At best it's a half solution, but it's not quite as bad as you portray here).
But why add that last statement? Just to be a jerk? Revel in your superior understanding/arrogance? I don't get it.
Edit: And for the record, I own no Ethereum and a few cents or dollars worth of Bitcoin, not sure how much.