No industry is immune to the effects of wise and experienced judgment. Likewise, tech isn't the same as sports. You don't suddenly age out of your career. Does it help to be young and hungry? Sure. Having a desire to succeed is the first step towards doing well in any line of work, but it isn't necessarily true that you have to be young in order to have this drive. Suggesting otherwise falls into a tired cliche: you can't teach an old dog new tricks. If you're feeling old or behind the ball in tech, don't psyche yourself out. You're just as able as anyone else.