That garage door opener didn't broadcast on different frequencies, they were all the same frequency.
It actually sends out a digital FM signal. It has a preamble for the garage door opener manufacturer, and then sends those 10 pulses.

But seriously, there are hackers that built one of those things that cycle through all 1024 combinations with teh press of one button.

There is no security.

Winders doesn't let you know how to modify certain icons on your desktop, but they publish how to install viruses. No one would use those completely open garage doors to do anything malicious would they?

Bitcoin is as simple as it can get and solve the double spend and trustless constraints.

And we really need control over our own devices.
I dislike that i buy an themPhone and i am at the bottom of the list of people who have control over the device. Pineapple can do anything they want with my phone. Then AT&T, then any carrier in between, then cops, the National Soviets Administration, even krackers have a higher place on the totem pole than i do, on MY phone. Its not an iPhone, its a themPhone.