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Emma Walsh here, managing editor of the Journal. Regular Journal readers know that tech isn't our typical beat. And when it comes to tech investing, we leave it to the professionals. Thankfully, we have a number of such experts in our Rolodex. Our colleague Jeff Brown will recognize to our longtime readers.
In fact, he had numerous triple-digit returns in his Brownstone Research portfolios in 2015. Here's what Jeff believes the tech sector will bring us in 2021 Each year, I like to have a look at the big image and predict what's simply around the corner. Long time readers of my work know that I follow the most exciting tech trends on the brink of mass adoption.
These patterns are experiencing rapid development and developing unbelievable chances for investors. 5G Devices Our new 5G (fifth-generation) wireless networks are a topic I've been covering for years now.
Even though the COVID-19 pandemic interfered with supply chains last year, an excellent 250 million 5G-enabled devices were still offered. Especially in the 2nd quarter, there were supply chain interruptions, manufacturing hold-ups, and work blockages. And all of this eventually caused Apple delaying the release of the 5G-enabled i, Phone 12 by 2 months.
When you think about all of that, selling 250 million units is impressive. More importantly, the delays triggered by the pandemic produced a lots of pent-up need. Which demand is now going to be pushed into 2021. In reality, I anticipate that more than 500 million 5G devices will be delivered in 2021.
Stage 3 of 5G When I've talked about 5G in the past, I have actually explained its three different stages. In Phase One, the infrastructure of these new networks is developed out, consisting of all the new towers and fiber-optic electrical wiring that 5G will need. In Stage Two, 5G gadgets go on sale.
And in Stage 3, 5G services start to be provided. That's when we start to see applications operating on 5G networks. Think about things like massive 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 Stage 3 by this summertime.
But they will care if there are amazing applications that can just be accessed with a 5G phone. So increasingly more consumers will go out to purchase a 5G phone to gain access to these applications. That causes more 5G apps being established. In fact, 5G is going to open up a suite of extraordinary applications: self-driving vehicles, the Web of Things, robotic surgical treatment, and more.
The financial investment chances going forward will be enormous. CRISPR Genetic Editing Stepping away from 5G, the next essential innovation I visualize in 2021 is CRISPR genetic editing. It's one of the most amazing developments in biotechnology.