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Emma Walsh here, handling editor of the Journal. Routine Journal readers understand that tech isn't our normal beat. And when it comes to tech investing, we leave it to the experts. Thankfully, we have a number of such experts in our Rolodex. Our colleague Jeff Brown will be familiar to our longtime readers.
In fact, he had several triple-digit returns in his Brownstone Research portfolios last year. Here's what Jeff believes the tech sector will bring us in 2021 Each year, I like to take an appearance at the big photo and anticipate what's just around the corner. Long time readers of my work understand that I follow the most amazing tech patterns on the edge of mass adoption.
These patterns are experiencing exponential growth and producing incredible chances for financiers. I desire to ensure all our readers are gotten ready for what's next. And with that in mind, let me draw the image of what I see coming in the next 12 months 1. 5G Gadgets Our new 5G (fifth-generation) wireless networks are a subject I have actually been covering for years now.
Although the COVID-19 pandemic disrupted supply chains in 2015, a remarkable 250 million 5G-enabled devices were still sold. Specifically in the second quarter, there were supply chain disruptions, producing hold-ups, and work stoppages. And all of this eventually caused Apple delaying the release of the 5G-enabled i, Phone 12 by two months.
When you think about all of that, selling 250 million systems is impressive. More importantly, the hold-ups triggered by the pandemic created a lots of suppressed demand. And that need is now going to be pressed into 2021. In truth, I predict that more than 500 million 5G devices will be delivered in 2021.
Stage Three of 5G When I have actually discussed 5G in the past, I have actually explained its 3 various stages. In Phase One, the facilities of these brand-new networks is built out, consisting of all the new towers and fiber-optic electrical wiring that 5G will require. In Phase Two, 5G devices go on sale.
And in Phase 3, 5G services start to be used. That's when we begin to see applications operating on 5G networks. Think about things like enormous multiplayer video games over a mobile phone. That's not possible with 4G. It will be with 5G. And my second 5G forecast for 2021 is that we will start Phase 3 by this summertime.
However they will care if there are interesting applications that can just be accessed with a 5G phone. So a growing number of customers will go out to buy a 5G phone to gain access to these applications. That leads to more 5G apps being established. In fact, 5G is going to open a suite of amazing applications: self-driving cars, the Internet of Things, robotic surgery, and more.
The investment opportunities going forward will be massive. CRISPR Genetic Editing Stepping away from 5G, the next important technology I visualize in 2021 is CRISPR genetic modifying. It's one of the most amazing advancements in biotechnology.