25-30k robot would pay it self off in its first years of life for a business that replaced workers if used at a rate a human could work. Throw in constant 24 hour tethered work the robot will easily take over some labor markets and completely transform how we view work.

My head hurts thinking about how large the universe is things seem to be finite but at such a large number it’s practically infinite.

Technically you should engage parking brakes while you have your foot on the brakes and before you put your vehicle into park.

Please just use it every time you park for extended periods of times. It will save your car from damage and when you put your car into park it basically is held into place by the transmission so the parking brake relieves that pressure

I’m not a therapist but if it’s impacting your life like this it’s time to see a therapist and talk about why you are biting your nails. It seems that you may need some one else to help you work through why it is you are biting in the first place. For me this is what I would do especially if I’ve already attempted to quit on my own