rocket question

Its my understanding that you need a 3 stage rocket to get to orbit. How
small can a rocket be and still be able to accomplish inserting a small
object (say, a 1 pound object for arguments sake) into earth orbit.
Do all orbits eventually decay? Or is there some magic sped/alt where it
becomes a permanent orbit?
Lastly: is this group dissolving? Has it (the posters who aren't kooks) gone
someplace else?
Thanks
Eric



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