Is MSFT 100% safe buy at $280?

I got an extra $10k lets say. I decide to buy MSFT at $280 for a short term swing trade (is that what you call it?).

So would anyone in their right mind bet AGAINST MSFT EVER again going higher than $280?

So I would think (imo) that MSFT is pretty much a guaranteed way to make some cash short term.

If I were to purchase and then it drops to $250 (long shot short term I'd say) then I could just hold.

I would think that it's almost virtually impossible (maybe 98%) that MSFT would NEVER get above $280 ever again going forward!

I'm gonna buy me some MSFT! Yahoooooo!