Question regarding deflationary crypto as a world currency

Hello, big BCH supporter for a long time. I have recently thought about the deflationary aspect of crypto as a p2p world currency, and I have one concern, maybe someone with a good grasp on economics can remind me of the answer as I am confused (It's been awhile since I was an econ major!)

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If BCH was the world currency, and I invested in a company, wouldn't the value of my investment actually go down over time, given the deflation of the currency?