On any given day, the average person’s life is entrusted to more than 2,000 different people who are complete strangers.
The report, which shows how any one of these anonymous individuals making a single mistake can easily cause another person’s death, concluded that it is only through sheer luck that anyone ever makes it through a 24-hour period alive.
Pronoia Resources 
How wonderful! 2000 strangers keeping my life in their hands….I always wondered if there was a specific number of people that made what I do possible. Great job, everyone! And thank you, whoever you may be.