It's my understanding that if the persons PC/.Serrver is the "out node" everything that's accessed is as though
that system is accessing the site (which I guess is sort of obvious

)
And am I correct in thinking that only 3 routers are actually used? i.e the
in router > pass through router > and the out router As an example, if you want to go to a certain site - say
www.eff.org Tor may use the
in router "number" 123 > on to the
pass through router "number" 2187 > and then onto the
out router "number" 99.
If again accessing that same site -
www.eff.org - it would then use 3 different routers; the
in router "number" 1,639 > on to the
pass through router "number" 2,728 > and then onto the
out router "number" 876 and so on..............
Thus each access "passes through" a different set of routers (but still only three routers)
I think I may also of read that there are "only" 3,000 + routers in use at any one time?
Note: the router numbers I've mentioned in the examples are just "made up" numbers to try and explain my thinking