XLK, i am wrong, you're a bull, forever?

I have a short position last night, and i believe i could made some dollars. However, strong labour market turns DXY from 90.35 down. In this morning, i stop lose and change to long, from 69.93 to Now. Though luck, i cover my lose, but still have question in my mind: is that possible to be a bull forever, MA 50 shows a perfect up trend.

Let's see SPX tests 2781.
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