Experimentation with vitamin B12 showed that I needed to take 25,000 mcg daily, which was over a million times the recommended daily dose.

It was my experience with the medical profession that had years of experience treating me and knew that I was displaying symptoms that matched B12 deficiency, that they were unable to make that diagnosis.

I never met anyone in astronomy that stated they had been sent on an industry recognized training course for the safe handling and use of cryogenic liquids & industrial gas.

My memories of high altitude astronomy indicate that up to four liquid nitrogen flasks were left venting gas into a small indoor workshop and office area where workers were permanently stationed.

Very high altitude workers were using medical oxygen to treat numerous health conditions that included fatigue, confusion, headaches, feeling faint and digestive issues.

In 2001 workers were using intermittent oxygen numerous times daily on the very high altitude summit of Mauna Kea in Hawaii. By the time I left in 2006 some workers were using portable oxygen units and nasal cannula's for continuous medical oxygen administration for the treatment of altitude sickness.

My memories of my time in high altitude astronomy indicate that there were no oxygen concentration monitors or alarms in the areas that liquid nitrogen was in use inside of the high altitude astronomical facilities where I had worked.

Four weeks after the #WeAreMaunaKea protests started in 2019, 215108 people had objected to the TMT project.

At the W.M. Keck Observatory on the very high altitude summit of Mauna Kea, there was no routine monitoring of mental functioning, blood oxygen levels, blood pressure or heart rate of summit workers.