Comment author:JoshuaZ
28 July 2010 02:47:42AM
1 point
[-]

This is almost certainly not computable in any amount of finite time since the Busy Beaver function is not computable in general, and is probably not computable for even much much smaller arguments (say on the order of 100 or possibly much less). So if one is working in computable universes this is simply not computable.

## Comments (65)

Oldhehehe what's BB(3^^^3)

*1 point [-]Hold on, let me create a new universe to hold all the matter needed to compute and write out its value.

I think you're going to need more than one of those...

Hold on, let me create a new universe to hold all the matter needed to compute how big and how many universes I'll need to compute BB(3^^^3).

This is almost certainly not computable in any amount of finite time since the Busy Beaver function is not computable in general, and is probably not computable for even much much smaller arguments (say on the order of 100 or possibly much less). So if one is working in computable universes this is simply not computable.

It's an integer, of course it's computable!