Over the past three decades, there's always been a next-big-thing trend to captivate investors' attention. For the moment, nothing is causing more excitement within the investing community than the artificial intelligence (AI) revolution.

AI utilizes software and systems to oversee tasks that would normally be handled by humans. What makes AI special is the incorporation of machine learning, which is what allows software and systems to evolve and become smarter over time. With practical application across virtually all sectors and industries, artificial intelligence is expected to add more than $15 trillion to global gross domestic product (GDP) by the turn of the decade, according to researchers at PwC.

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Source Fool.com