Keep in mind that everything is frequency. How many channels does your TV receive and how does it know which one to decode/display? Each of those channels is a frequencies is in a range the act of displaying a specific channel is called "tuning." The reality you and I share may be on a frequency in the range of 2 billion cycles per second, but who is to say you can't experience others
Thanks, will check it out. Sure I'll learn something.
Yes, that is an iPhone.