I'd refer to Warren Buffet's 2014 shareholder letter.
TLDR: Valuations fluctuate on whim, but production is real. So concentrate on owning things that actually produce.
I have a significant amount of stock and the valuation has gone down, but the dividends that have paid out aren't going anywhere. It's unlikely that all of American production is going to be swallowed up into the void, so when the valuations come back up I'll still be here. Or we'll be living in mad max so it won't matter.
God, now in my mind I'm imagining Warren Buffet in Mad Max leather. I don't know if I'm amused or uncomfortable.
