Or simply when the writers who are from this century use this century as a reference point.
I demand 15th century writers.
Tell me, Master Data, how farest the vessel? Doth she warp true through this dark and silent celestial sea, or do the tachyons of the ether buffet her sides with undue malice?
My Lord Captain, the carrack Enterprise glideth upon the celestial currents with most passing grace.