[CyberRabbi]

This was my first reaction too but probably every DIY/educational video I’ve seen on YouTube has had strong warning disclaimers before introducing the material. Generally most people would be extremely cautious around industrial machinery that moves at high speeds, let alone ones that you design yourself. The higher the stakes, the higher the caution should be. I don’t know how that got lost here, he seems to have had a crew too.

[TeMPOraL]

People get used to industrial machinery too. Reminds me of the old saying, that a carpenter loses their finger when they stop respecting the saw.

In a professional setting, you have at least two forces ensuring your safety. Your own survival instinct is one. The other one is your boss being liable for accidents at work. Even if you feel super comfortable with your practice, there are other people who'll try to prevent you from doing something stupid - and they have power over you, because as your bosses, they can deny you the access to the workshop.

With a solo op, that second force is missing.

[bserge]

My grandfather was missing half of his fingers and not because he stopped respecting anything.

Simply because after working for 10 hours straight he was tired as hell. But life doesn't pause because you're tired.

Probably the number 1 accident maker - tiredness, both mental and physical. Reduces your cognition and reflexes, which results in injuries and death.