> Quote - Okay, then, something I saw recently in a video got lost in translation about sculpting. I actually thought it made things smaller and subdivided vertices and polygons.

I hope I don't sound pedantic, these forums are here to benefit people of many skill levels, and I think it's important to understand and use proper terminology whenever possible.  I wouldn't want others being misinformed by my own generalisations or over simplifications.

Whether something is made larger or smaller or subdivided doesn't matter, Boolean operations are a very specific thing.  Achieving the same result of a booloean operation does not necessarily require a boolean operator.  I can use Wings to manually merge two spheres for example, but it would not be a "boolean merge" if it was done manually without a boolean tool.  

In this image you can see the only logical results of a boolean operation performed on objects "A" and "B"; a new object comprised of both "A" and "B", an object defined by the intersection of "A" and "B", object "A" minus object "B", and object "B" minus object "A".