Speculating on when Christ will return is kooky...

...and faithless. Our focus should simply remain on being faithful--trusting in Christ, loving God, loving neighbor, and spreading the good news of new, everlasting life for those who turn from sin and entrust their lives to Christ--no matter when Christ may return.

Check out these words of Jesus (in them, Jesus refers to Himself as "the Son of Man"):

[Jesus said:] “But about that day and hour no one knows, neither the angels of heaven, nor the Son, but only the Father. ³⁷For as the days of Noah were, so will be the coming of the Son of Man. ³⁸For as in those days before the flood they were eating and drinking, marrying and giving in marriage, until the day Noah entered the ark, ³⁹and they knew nothing until the flood came and swept them all away, so too will be the coming of the Son of Man. ⁴⁰Then two will be in the field; one will be taken and one will be left. ⁴¹Two women will be grinding meal together; one will be taken and one will be left. ⁴²Keep awake therefore, for you do not know on what day your Lord is coming. ⁴³But understand this: if the owner of the house had known in what part of the night the thief was coming, he would have stayed awake and would not have let his house be broken into. ⁴⁴Therefore you also must be ready, for the Son of Man is coming at an unexpected hour." (Matthew 24:36-44)