For most people, the internet feels invisible. We talk about “the cloud,” upload files, download videos, and connect with people around the world without thinking about the infrastructure making it possible.

But much of today’s internet is not in space. It is underwater.

More than 800,000 miles of submarine cables criss-cross the world’s oceans, carrying the vast majority of international internet traffic. These fiber-optic cables transmit information as pulses of light, moving enormous quantities of data between continents.

So why are companies such as SpaceX, Amazon, and OneWeb investing billions in putting internet infrastructure into orbit?

The answer goes far beyond faster Wi-Fi. At its core, the emerging space-based internet industry is trying to solve one of the biggest problems in modern connectivity: where traditional infrastructure cannot economically or practically reach people.

The Internet Is Already a Global Infrastructure Marvel

As of 2021, roughly 436 submarine cables were in service around the world. Together, they form an enormous physical network beneath the oceans.

Cable-laying ships transport these cables across entire oceans, sometimes traveling for weeks at around 6 knots, or approximately 7 miles per hour. The cable is gradually released from the ship and settles onto the seabed.

The technology works by converting digital information—essentially streams of ones and zeros—into pulses of light traveling through tiny glass fibers.

This infrastructure is remarkably fast and reliable. But it has an obvious limitation: you need to physically build it.

That becomes difficult when the customer base is small, the terrain is challenging, or political instability threatens ground-based infrastructure.

And that is where satellite internet becomes particularly interesting.

The Digital Divide Creates a Massive Opportunity

Internet access is no longer simply a luxury. It affects education, employment, healthcare, communication, business formation, and participation in society.

Yet millions of people still lack reliable high-speed internet.

The problem exists both between countries and within them. Rural communities can be particularly difficult to serve because laying expensive infrastructure may not make financial sense when relatively few customers are available.

There is also a major disagreement over the scale of the problem.

A U.S. Federal Communications Commission map estimated that roughly 14 million Americans lacked access to fast internet. Microsoft produced a much higher estimate of more than 120 million.

One reason for the discrepancy is how coverage can be reported. Under the FCC’s Form 477 system, if an internet provider serves—or says it could serve—someone within a census block, the entire block could be counted as covered.

That means a community can appear connected on paper while many individuals within it still lack meaningful high-speed access.

This is the digital divide, and it represents both a social problem and an enormous commercial opportunity.

Why Billionaires Want Internet in Space

The economic logic is straightforward.

If a company can provide reliable internet to places that traditional providers cannot serve efficiently, it gains access to millions of potential customers.

The global broadband opportunity has been estimated at around $30 billion per year.

The companies pursuing this market are not necessarily trying to replace fiber everywhere. Instead, they can target locations where traditional infrastructure is too expensive, unavailable, or vulnerable.

That distinction is important.

For someone living in a major city with excellent fiber infrastructure, satellite internet may offer limited advantages. For someone in a remote community with no comparable infrastructure, the equation is completely different.

Why Traditional Satellite Internet Was Often Slow

Satellite internet is not a new concept.

Earlier systems, including HughesNet and Viasat, generally placed satellites much farther from Earth. These satellites could remain positioned over large areas, providing broad coverage with relatively few spacecraft.

The problem was distance.

Internet signals traveling between Earth and a distant satellite take longer to make the round trip. That creates high latency, which can make internet connections feel slow even when their bandwidth is reasonable.

Two measurements are particularly important when evaluating internet performance:

• Bandwidth: how much data can move through a connection over a given period.
• Latency: how long it takes information to travel from one point to another.

A useful analogy is a pipe. Bandwidth represents the width of the pipe, while latency is more like the distance information has to travel.

The ideal connection combines high bandwidth with low latency.

Starlink’s Different Approach

Starlink takes a fundamentally different approach.

Instead of putting a small number of satellites extremely far from Earth, it uses large numbers of satellites in low Earth orbit.

Being closer to Earth reduces the distance that signals need to travel. The trade-off is that satellites at lower altitudes cannot cover enormous areas from a single stationary position. They must orbit, requiring a much larger constellation.

This is the central idea behind the new generation of satellite internet projects.

Amazon’s Project Kuiper and OneWeb are pursuing similar broad concepts, although their strategies and stages of development differ.

Starlink has moved ahead of many competitors in deploying its system.

The result is already notable: satellite internet that can offer surprisingly high bandwidth and relatively low latency compared with older satellite systems.

Starlink Could Eventually Challenge Fiber

There is another technological advantage.

Starlink can use optical links—essentially laser communication—between satellites. Light travels faster through the vacuum of space than it does through glass fiber.

That creates an intriguing possibility: under certain circumstances, a network of satellites could potentially move information between distant locations faster than terrestrial fiber routes.

That does not mean satellites will replace fiber everywhere.

Fiber has enormous advantages in areas where infrastructure already exists. The more likely outcome is a hybrid system in which fiber remains dominant across densely connected regions while satellite networks serve remote locations and other areas where terrestrial infrastructure is difficult or uneconomical.

The real breakthrough would therefore not necessarily be replacing the existing internet, but expanding the places where high-quality internet is possible.

The Problem With Thousands of Satellites

The Starlink model also creates a serious environmental and scientific concern: the night sky.

Thousands of satellites in low Earth orbit can interfere with astronomical observations. Astronomers rely on clear views of the sky to study the universe, and large satellite constellations can create bright trails or otherwise interfere with observations.

This is more than an aesthetic problem.

Ground-based astronomy contributes to scientific research and can even play a role in planetary defense, including the detection and tracking of potentially hazardous asteroids.

The challenge is therefore not simply whether satellite internet should exist. It is how humanity can expand connectivity without unnecessarily compromising scientific observation.

Solutions could involve better information about satellite positions, improved satellite designs, and rules governing how and where satellites operate.

Starlink’s Role in Crisis Situations

Satellite internet has another major advantage: it does not depend entirely on local ground infrastructure.

That makes it particularly valuable when terrestrial networks are damaged or disrupted by disasters, conflict, or other emergencies.

The activation of Starlink in Ukraine demonstrated this potential. When conventional communications infrastructure is threatened, an independently operated satellite network can provide a crucial alternative route to connectivity.

This highlights one of the most important characteristics of satellite internet: resilience.

A technology designed to serve remote communities can also become strategically important when existing infrastructure stops working.

The Real Prize Is Not Faster Internet—It’s Cheaper Internet

The most important question surrounding Starlink and its competitors is not simply whether they can deliver faster internet.

Faster technology is valuable, but if it remains affordable only to wealthy customers and specialized industries, its broader social impact is limited.

The transformative scenario is when technology becomes faster, better, and cheaper at the same time.

That is how technologies move from luxury products to commodities.

The same pattern has occurred repeatedly. Products and services that were once accessible primarily to wealthy people eventually became widely available as technology improved, production scaled, and prices fell.

Internet access itself followed part of this trajectory.

If satellite networks can eventually deliver reliable broadband to people who previously had little or no access, the economic consequences could be substantial.

What Better Internet Can Change

Research has associated expanded internet access with several economic and social benefits, including:

• Increased job growth
• The creation of new businesses
• Lower unemployment
• Better access to education
• Improved health outcomes
• Greater access to information and services

These effects became particularly visible during the pandemic, when education, employment, healthcare, and commerce increasingly depended on internet connectivity.

This is why the satellite internet race matters beyond the technology itself.

It is ultimately about reducing the importance of geography in determining who gets access to the digital economy.

The Bigger Picture

Starlink is not simply a project to put Wi-Fi in space.

It is part of a much larger competition to determine how the next generation of global communications infrastructure will work.

Traditional submarine cables remain an extraordinary achievement and will continue to carry enormous amounts of global internet traffic. Fiber is unlikely to disappear simply because satellites are improving.

But satellite networks can fill the gaps that traditional infrastructure struggles to reach.

The most compelling future is therefore not necessarily fiber versus satellites. It is a world where both systems complement each other: fiber providing enormous capacity where infrastructure is practical, and low-Earth-orbit satellites extending reliable connectivity to places where cables and towers cannot easily go.

The internet may have started as a network of computers, but it has become something much bigger: a fundamental layer of modern society.

The next phase of that network could increasingly exist above us—not because the cables beneath our oceans have failed, but because billions of people still need a way to connect to them.