Why Tim Cook says he doesn't think about his legacy

• Tim Cook discusses his legacy in an interview with tech YouTuber Marques Brownlee.
• Cook says that, like Apple, he's more focused on looking forward than back.
• The Apple CEO, who took over for Steve Jobs in 2011, said any legacy is for others to decide.

Steve Jobs famously said he wanted to "put a ding in the universe," and many would argue bringing the iPhone to market did just that.

So what will be the legacy of his successor, Tim Cook?

The Apple CEO said he hasn't given it much thought — and it's for others to decide.