You’d have to shoot thousands of rounds in an unventilated room to get even close to one day of leaded gasoline exposure
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I figured copper jackets would greatly reduce lead exposure, which is all I used when I used to shoot.
Leaded gas wasn't fully stopped until 1996. Still in some aviation used (piston plane engines).
But yes I wonder about shooting ranges too. I think a couple times a year at an indoor range isn't insignificant.
You're half right, they're are brain damaged.
But bullets?
I don't know man. Seems unlikely. Leaded fuel and lead paint tho..?
#Lead Exposure in Last Century Shrank IQ Scores of Half of Americans
Leaded gasoline calculation to have stolen over 800 million cumulative IQ points since 1940s
A new study calculates that exposure to car exhaust from leaded gas during childhood stole a collective 824 million IQ points from more than 170 million Americans alive today, about half the population of the United States.
https://today.duke.edu/2022/03/lead-exposure-last-century-shrunk-iq-scores-half-americans
There is an episode of Mind Field on youtube, it's their halloween episode that explored the source of fear in humans. It had a campy feel to it but also contained a lot of good information.
The conclusion made in the video is that there are very few "universal fears", things that cause fear in every human test subject regardless of race, culture, age, etc.
They were able to find one though: humans universally do not like the feeling of suffocation, specifically we are pretty sensitive to the ratio of oxygen and CO2 we are inhaling.
The brain interprets an increase in the CO2 concentration in the blood as "suffocation" and activates the fear response to try to protect us.
What have been dumping absolute metric fuck loads into the atmosphere in the past centuries? Countless amounts of CO2. And the concentration is only going up and up and up.
All of us are experiencing elevated amounts of CO2 in the blood, and all of us are universally feeling some level of the fear response because of it. Might explain what seems to be a lot of really bad decision making across all of society, people are scared, don't know where it's coming from, and are seeking anyone and anything that can help fix it immediately, whether or not it's actually helping.
Fear is the mind killer.
Get a CO2 sensor, and you will see CO2 levels spike massively in occupied rooms with poor ventilation. Indoor CO2 levels can easily exceed 4x the normal outdoor level. Because of this, and critical thinking, I don’t believe for a second that a global rise in CO2 has any direct effect on our behavior. I could be convinced that increasing time spent indoors (and online) does, though
Typical CO2 concentrations:
- Outdoors (2024): ~430ppm
- Outdoors (2000): ~370ppm
- Indoors (depends on ventilation): 800ppm ~ 2000ppm+
I really can't imagine CO2 concentrations in the air is "suffocating" us. Air is mostly nitrogen, then oxygen, CO2 is a tiny sliver (which yes traps heat, different problem.)
Probably not.