In a serious sense...what does "frequency" mean to you? Let's start there.
A Frequency is a frequency some are audible and some aren't, sort of like silent sound or a pitch that could come from various places, heck even our
brain transmits a frequency and with all the new remote stuff that keeps coming out like cell phones and new applicable products there's more of it
in the air
Frequency means how often something cyclical happens per unit time. No more, no less.
Any occurrence has a frequency. If a woodpecker taps on a tree limb 30 times a minute, that's the woodpecker tap frequency he's got. If a faucet
drips once a second, that's the faucet drip frequency. Frequency just means how often something happens per unit of time, generally seconds or
minutes, but even miles per hour is a frequency, it's how many miles you're going to go by in an hour, so it's how often something (a mile going
by) is happening per unit of time (an hour), which makes it a frequency by definition.
Frequency is therefore an attribute, and not something tangible. I can't shoot a frequency at you. I can't dip up a bucket of frequency and heave it
on you. It would be like throwing blue at you. Things can BE colored blue, but you can't have a handful of blue, because blue is the attribute of
color. Frequency is the attribute of re-occurrence.
Therefore things have a frequency, but there isn't a standalone thing called a frequency, separate from what it's a frequency of. That's why, if
you watch me post, when someone says "bla bla is frequency" I'll nearly always reply "Frequency of what?" because you can't just have
'frequency'. It's ALWAYS 'frequency of what'.
Now, reading the part I quoted from you, it also seems like you are mixing up very different things just because they all share the attribute of
frequency. Two things having a frequency doesn't mean they're related in any way, any more than a blue car is like a blue sky. A radio signal is
NEVER audible directly, even if it's in the same frequency range as an audible sound. A 1kHz radio signal is totally silent, because it's not sound.
A 1kHz sound is audible, but doesn't radiate like a radio wave, because sound and radio are totally different in nature, even though they share the
attribute of frequency.
In a similar way, your brain produces "brain waves" on an EEG, and can have definite frequencies (again, blue car, blue bird, blue sky - all
different qualitatively), but the frequency is caused by firing rates of neurons. Neurons produce a small electrical potential when they fire as a
side effect, sort of the way a car makes an exhaust sound. Since your brain functions as a sort of asynchronous state machine in ways, you see waves
of information processing as one section completes analysis and the next picks up the results and goes on. In a way it's like the "wave" at a
football stadium. But that's all the meaning you can impart to it - it's the aggregate electrical noise of a lot of neurons firing, and what you're
seeing are the different sections plowing through the data. It's a bit like standing outside a stadium and hearing people cheer - they all saw
something and are responding to the data, but exactly what happened isn't embedded in that noise. You see a wave of activation on the EEG, but it's
not clear exactly what that means.
Thus there isn't really a "brain frequency" that corresponds to a single something. There isn't a frequency that corresponds to imagining putting
yellow mustard on a Hebrew National frank on a whole wheat bun, and if you somehow beam that "frequency" at someone they will see that too, any more
than you can make Drew Brees throw a touchdown pass by beaming back crowd noise from speakers outside the football stadium from the last touchdown he
People being adaptable, you can train yourself to have your neurons fire in specific patterns when you want that to happen, so you can have little
headsets that sort of let you do video game controls and whatnot, but it sucks, in much the same way you could send Morse by revving your car engine
and using the exhaust sound. You can DO it, but it's clumsy and half-assed.