Is it possible to doubt everything or almost everything?

It's often less difficult and requires less effort to doubt rather than to believe.

It requires less thinking, rationalization, and research to doubt a subject than it

would to do the necessary steps to bring one to raw belief.

In order to doubt, only a few factors must be considered. However, in order to reach pure belief, many factors, theorems, and proofs must be presented.

And, still, if one is leaning toward non-belief, it is difficult to separate the

salient points that led you not to believe against the other side of the debate that would instill in you a true belief.