Gabriel just found out that he won a random lottery for a new iPhone. Later that same day, he found a $$20$ bill on the ground outside of his car. After these two events, Gabriel now thinks he is on a lucky streak and that his luck will continue. As a result, he purchases $$50$ worth of scratch$-$off lottery tickets but, ultimately, does not win any money off of the tickets. What concept explains why Gabriel thought his luck would continue?

The hot hand phenomenon

Gambler's fallacy

Primacy effects

Overconfidence

Weber's law