Solar Sail to Power electricity

Not sure if this is a viable idea, but what if there is a giant sail launched into earth's orbit, connected by a thin cable back to earth. This sail collects electricity from the sun and sends it down to the cable.

The future of internet access is through cell phone networks, not satellites

In 5-10 years, we might see DSL and Cable being replaced by internet through mobile networks - current ones are Verizon/T-Mobile/ATT/Boost/Virgin Mobile.

Elon's Musk's suggestion of covering the planet with wifi through low orbiting satellites is not practical. He suggested launching more than 4,000 satellites (through SpaceX, of course), to cover the planet with wifi signals, especially in hard to reach places.

While this approach would work well for remote locations, it is not practical for areas already covered with cell phone signal and towers (most of the urban areas in the world). The most practical solution is to deliver internet through the same networks our cell phones currently use, and, in fact, this is already happening. The issue is that it's just too expensive at the moment, but eventually, very decent internet speeds will be obtained at fairly cheap prices through cell phone networks.

While they would probably never match the speed of a wired signal, not everyone needs that speed, for most people, the speed achieved through cell phone network will be sufficient. 

Elon Musk pursues personal financial goals when advocating colonizing Mars

Reddit, and especially its Futurology sub, is peppered with articles about Elon Musk. I guess the click bait works well with his name in it.

On the list of the problems United States is facing today, colonizing Mars should really NOT be a priority. This endeavor, if ever undertaken by human kind, should be a JOINT effort by the whole human civilization, not by the US government giving billion dollar contracts to SpaceX, which is what Mr. Musk specifically wants.

The United States currently faces a failing healthcare, education and prison industry. The available money shouldn't be going to SpaceX or NASA, it should be going towards those in need and towards reforms of those industries. Going to Mars should be a joint effort, like the International Space Station, however, I do not see the European, Russian or Chinese space stations advocating colonizing Mars, mainly it's just Mr. Musk

To underline, I do NOT oppose Mr. Musks companies - Tesla and SpaceX. It's great that SpaceX is researching rocket technology and putting people to work. However, Musk's ultimate goal in all this is self-fulfillment and enrichment. He wants to be famous. He wants to be rich. He is now both.

He is advocating things that directly financially benefit him. This must be understood and remembered in relation to all the online PR his team generates daily to prop up Tesla's stock price while it keeps losing money every quarter without fail.