The average typing speed is 38-40 words per minute (wpm) for adults  in a professional working environment (despite many incorrect  reports on the web that it is 50-60 wpm).
Chronic Health Effects The following chronic (long-term) health effects can occur at some time after exposure to Mica and can last for months or years: Cancer Hazard * Some Silicas have been shown to cause cancer in animals. The risk of cancer in humans from Mica is unclear at this time.
Yes, but you imply that the talc is the toxic ingredient when the dangerous compound is actually the asbestos. It seems you did not understand my criticism. While it may not be your intention, you are promoting an irrational fear of talc itself.