I wondered if this thread was about C++ since that is the only connection I heard 'Remember the Vasa. It's from watching this:
Scott Mayers - Why C++ Sails When the Vasa Sank https://www.youtube.com/watch?v=ltCgzYcpFUI
Full circle ?
My BBC Micro (6502) even had a memory viewer in ROM that ran at ~50fps and I remember the fun looking at running timers and keyboard/joystick ports getting activated and such.
Years ago I wanted to do that on windows and found out that there was something called protected memory, now it finally looks like I can experience that fun again, although at a slower pace it seams ;-)
"The researchers who found Dragonfly 44 weren't looking for a dark galaxy. Another surprise: They found it using a telescope built of camera parts. The Dragonfly Telephoto Array was built by a group of astronomers at Yale University and the University of Toronto who realized that telephoto lenses — so often used for nature photography and sporting events — were well-suited for spotting the kind of large, dim objects that pose problems for typical telescopes."
I like it, reminds me of the discovery of the Cosmic background radiation by Penzias and Wilson with the Holmdel Horn Antenna. Accept this time nobody had to shovel bird shit :-)
The video: No, it shows how to 'record what you hear' (windows mixer) nothing to do with the speakers.
I would claim that it is impossible to record from speakers that are connected to low impedance running output amps and record from them at the same time.
So if the speakers are playing music they are not recording your sing-a-long also.
I can't imagine that pulsed digital transmission on 10Ghz
would not create noise in the lower harmonics bands at all.
The meter also have a sound mode where you eg. can hear the ~8-10Khz modulation of the mobile ~700/900/1900/2100Mhz signal.
You can clearly hear the difference between different transmission types as DECT phones, Wifi, GSM/LTE, and EM noise in general(PC's/HDMI cables/USB3 HD docks)
My central room heater has a small CR battry powered computer (that I had forgot all about) that calculate the bill and transmit the results every 2 minutes on 2.4Ghz
it makes a tiny ~0.5 sec pulse on the display/audio, and I thought for an hour that I had a hidden transmitter in my apartment, since turning the mains fuse off had no effect.
I had to clear the room of all tech to track down the source, felt a bit stupid when I finally found it.
So going down this road has some up's and down's vs staying totally oblivious of ones electromagnetic environment.
If your are equip like me with a EMF meter, then its easy to confirm what your phone is doing when in airplane mode, with normally is nothing. A mobile phone is after all just a computer with a radio modem. It can't do shit without sending out RF.
I would recommend something like the 'Cornet ED78S RF Meter' to every technician with the tiniest amount of AU in circulation.
The reason I got it was because I have become electro-sensitive, and that's almost a death sentence in the modern city.
Those pictures of Stallman sitting on a mountain top and not a mobile phone mast in sight looked very appealing...
My phone LG-L80 99£ is GSM only, all else is off, apps downloaded on wired PC and installed via ADB interface.
Currently used as book reader for C++11 fourth edition and as Wikipadia offline reader(Kiwix) 12GB on SD card - music/mp4 player and the battery last for a week or more.
I feel I'm in control of my phone, don't know if that is justified or not?