Help I work in an open office and my co-workers are so loud
cnbc.com
cnbc.com
Basic, "default" levels of respect for people is the most foundational layer of humanity. For the sake of society, do not accept petty acts of disrespect.
Well that's one solution.
Either they are comically large full size over-ear headphones, so it is obvious you are in the zone
OR
You get some IEM style in-ears that block literally everything and you ignore anyone walking up until they wave their hand in front of you
Either way, the act of taking off the headphones needs to be exhausting and take 30 seconds so whoever disrupted you doesn’t want to do it again frivolously
Headphones are also a signal to any reasonable person that you don't wish to be unnecessarily disturbed.
“ most active noise-cancelling headphones have a noticeable dip in usefulness right at the 1 kHz point. This is why ANC is better suited for reducing low, sustained sounds like those of motors and airplane engines, and it’s why such headphones can’t filter out screaming kids. ”
https://www.nytimes.com/wirecutter/blog/what-noise-cancellin...