Being a brazilian myself, I have to assure you it's not the electronic booth only. The whole election process is audited from beginning to end, software source code is independently audited, compiled and the binary is signed, in a full day cerimony.

The software activates itself an hour before the elections begin, and it must be closed at most a couple of hours after the election ends, or the booth is invalidated. It stores only two information: if an registered elector voted, and the vote itself, but no link is made between information. Data itself is encrypted and only the Superior Electoral Court President Judge has the key, which is he/she hands off to the Regional Judges only after all booths are recovered to the regional courts.

The whole thing is very straightforward, but the process has many control points and locks, so it would require an army of fraudsters for the elections to be cheated.

Because simulations do not substitute real experiments. For instance, why would one need LHC if the simulations show the Higgs boson? (Q.E.D.)

Widmore knows!! They're alive!! Linus told me!

I second that.

This is much better, since you also overcome the 48h forgetting window.
If you don't force yourself to look for a piece of information for a time, it goes to oblivion. Your mind takes care of throwing unused info to the mental garbage bin, and our internal garbage collector runs on an average of 48h.
Writing it down creates some positive feedback that makes that information valuable, and copying it to the computer reinforces it (taking the internal reference counter to 2).