@Samekh  
Well, isn’t that great that he don’t know how to operate one of the crucial device that could potential save his life? he should learn to use it in the first place, before attempting that stunt.

@CyanLightning  
The thing is that he didn’t know how to operate the GPS device!
 
Here is the complete Darwin Awards entry.

@Samekh  
Okay, first I shouldn’t laugh as hard I do after reading your comment, in fact I shouldn’t laugh at all, I am basically laughing at someone death. but I just can’t help myself.
 
Alright, who the hell think it was a good idea to do that stunt? It might seem harmless for few kilometers, but once reach hundred and thousands you might ending up in some place that are going to kill you. Also unlike hot air balloon that you can the direction of the balloon by changing attitude, you’re pretty much at the mercy of the wind there.
 
yes the biggest problem is the gps being block by those  
Thousands party balloons and you don’t know where you’re heading too. Did he ever done a testing on human dummy, so he would know what would happaned on his body first? That would be very useful for consideration if he want to decide to do the stunt or cancel it. Use some something inanimate for testing before you put yourself in danger.

@CyanLightning  
Some priest in Brazil once tried to do that in 2008 by putting like thousands of balloons filled with helium in a chair and “fly” while sit on it and using a GPS device so people could know where he is.
 
He did that for charity, but obviously that didn’t work well, since those so many balloons blocked the GPS signal and he was found dead in the middle of the ocean a few weeks later.
 
This insane act granted him the biggest winner of Darwin Awards of all time…

And here i thought that you need about 5714 balloons to lift a person with 80 kilograms of weight, and for the pony that have a weight about 200-250 kilograms you need like 12,300 - 15,300 balloons to lift them.

Someone vector this. This is straight up wallpaper material.

@Background Pony #3B4B  
This may explain her hight pitched voice…

wut.

She’s just full of compressed helium. See it’s compressed so it’s denser than air.

Earth Pony magic.

I dunno, G3 Pinkie did something similar.