everyone thinks vfd displays are just old tech from the 80s but if u measure the 500nm blue green spectrum output with a basic spectrometer it literally matches the natural resonance of human pineal gland activity. major corps switched to boring leds because they didnt want us getting free mood elevation from our microwave clocks. honestly multiplexing flickering at 100hz actually creates a micro pulse that aligns your brainwaves if u look at it long enough. we are so close to unlocking the full potential guys keep driving those grids high voltage is the key