When I became a technology columnist in the mid-1990s, the public Internet was just beginning its first big surge. Back then, I advised my readers to avoid the semi-political, even religious battles that advocates of this or that technology platform seemed to enjoy. Appreciate technology, I urged, for what it is — a tool — and use what works best.

So why am I typing this on a laptop running GNU/Linux, the free software operating system, not an Apple or Windows machine? And why are my phones and tablets running a privacy-enhanced offshoot of Android calledCyanogenmod, not Apple’s iOS or standard Android?

Because, first of all, I can get my work done fine. I can play games. I can surf endlessly. The platform alternatives have reached a stage where they’re capable of handling just about everything I need.

More important, I’ve moved to these alternative platforms because I’ve changed my mind about the politics of technology. I now believe it’s essential to embed my instincts and values, to a greater and greater extent, in the technology I use.

Control is moving back to the center, where powerful companies and governments are creating choke points. They are using those choke points to destroy our privacy, limit our freedom of expression, and lock down culture and commerce. Too often, we give them our permission—trading liberty for convenience—but a lot of this is being done without our knowledge, much less permission.