A red, green and a blue envelope is presented to you along with an accompanying letter.
You read the letter and discover that it contains an explaination of each of the envelopes;
The red envelope contains the way in which you die.
The green envelope contains the date in which you die.
The blue envelope contains your very last coherent thought.
There is also a footnote stating that each prophecy given is 100% self-fufulling; knowing how you die is entirely futile in trying to prevent it.
You have a choice: You can either read the notes now or destroy them. You do not have to read or destroy all of them, for example, you could choose to read the red and blue envelope and destroy the green. You cannot however, take the letters away with you.
Which envelopes, if any, would you open and why?