AC lets you go if you shock, DC keeps you pulled in. I'm sure if you google this there'd be a video or 2, but it's going to be ugly

Just to add, 400VAC is rough, but 400VDC scares me

It's not something that you have to do either.

Buuut have you tried sensory deprivation? Earplugs, blindfolds in a quiet dark room could help.

It was pretty cool. Dimly lit side scroller/shooter. Worked with mouse aim which was weird for the time.

Also aliens (ants?) with rocket launchers

As someone who does factory Automation "I open valves, and start pumps"

Some kind of monster?

"At the tone, it will be 8:45 exactly." Beep

Do you a link to the paper?

What you are looking for is Ignition SCADA. Specifically the perspective module. It is the best in the market in my opinion, has unlimited tags, great training videos and runs on almost anything. It also comes with the drivers needed to connect to most of the popular brands' PLCs.

I have seen this implemented at wastewater and water treatment plants

However a SCADA will be pricey, if it's a small plant rather consider an HMI, there are options available from Ignition's side, but it'll depend on how much it is worth to you

So OP is complaining about being limited by the amount of free books OP can listen to? Sounds fair to me, these things cost money to make, and websites cost money to run.

If you have 2 legs you have an above average amount of legs