[smusamashah]

So me and my friend are continuously getting those envelopes. I am opening all the envelops one after another and found that they are distributed 50/50 to red/blue.

Same if my friend is opening the envelops.

Now for all the opened envelops if I have got 10 red balls. Now if my friend open the paired envelops, he will probably get 7 blue and 3 red.

My observation of the balls had an effect on his side and shifted probabilities on his side.

If that's what you mean, what does observation or measuring even mean? How do the balls know the envelop has been opened.