Two big themes last week at Inside ETFs, the Comic-Con of exchange-traded funds attended by more than 2,300 advisors and investors, were innovation and disruption. Like all other industries, the investing world has seen its fair share of disruption in the past quarter-century—think indexing, passive investing, the rise of robo-allocation and now blockchain and cryptocurrencies. This year marks the 25th anniversary of the first ever ETF, and today total ETF assets top $3 trillion. That’s a far cry from the estimated $40 trillion sitting in mutual funds worldwide, but exchange-traded funds are rapidly catching up as investors seek cheaper, more innovative and tax-efficient instruments.

Consider robo-advisors, which emerged only 10 years ago. Who would have thought in the mid-2000s that so many investors would be comfortable enough with the idea of a machine managing their money? And yet here we are. By 2020, Citi analysts predict, assets controlled by robo-advisors could reach close to $450 billion globally.

Disruption was definitely top of mind during many of the presentations and interviews at Inside ETFs, including that of producer and composer Quincy Jones, who was at the conference to promote a new stock index that tracks music and entertainment companies. “Q” is the very definition of a legend, having been at the center of some of the most influential musicians, actors, and artists over the course of his long career. With a record 79 Grammy Award nominations to his name, he’s made an indelible impression on the music, television, and film we all consume and enjoy, whether we’re aware of it or not.

When CNBC’s Bob Pisani asked Jones if he was ready for the day when robots write and perform music, the 84-year-old Jones said, “You can’t stop the technology,” adding that he was among the earliest experimenters of synthesizers. (Anyone remember the synthy theme song to the old 1960s-1970s detective show, Ironside? That was composed by Quincy Jones.)

“You got to always stay curious. You got to be willing to take a chance,” he said.

A similar forward-thinking attitude was expressed by Serena Williams, who was also in attendance. The tennis virtuoso and four-time Olympic gold medal winner, who bagged her 23rd Grand Slam last year while pregnant, is a savvy businesswoman in her own right, sitting on the board of online survey firm SurveyMonkey and Oath, a subsidiary of Verizon that controls a number of media outlets such as HuffPost, Yahoo and Tumblr.