Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: @OnesOwnGrief Just a shame his world was gloom from day one almost.Though it makes sense he'd have the whole part hydra,part s.h.i.e.l.d(c)
0.297