http://www.youtube.com/watch?v=VFZKtvHQSNY

cool vid...sadly it is fake. you can break bedrock but it is impossible because no computer can hold the amount of TNT needed.

3:33

wut. and also an edit:

Notch confirmed on the 11th of February 2011, during a Machinima Live stream, that it is indestructible, or so solid that the amount of TNT it would to take to destroy it would more than certainly crash your computer, therefore the save file would show no evidence of the explosion ever happening.

i guess the vid is modded, but notch says it is possible but no computer could handle the ammount of TNT needed

Dang i wanted to blow up bedrock and make a mob trap with the void awwww :/

haha

Breaking bedrock would violate the laws of space-time continuum and bring the entire universe to self annihilation.

you can break bedrock, with instamine or worldedit <object class="emojione" data="https://resources.enjin.com/1489581540/themes/core/images/emojione/svg/1f609.svg?0" type="image/svg+xml" standby=";)">;)</object>

With runecraft, if you are an admin, you can make the "Admin pick" and mine bedrock like stone.

Thanks for letting me know.

/sarcasm

Theres no "amount" factor to it. TNT has a range, and you cant possibly stack enough TNT within that range to overcome the explosive resistance of bedrock.