All crypto activity will end with currency and USD is popular choice, in market btc/ usd pair also become trader favorite. This time bitcoin use currency as value pairs and ignore satoshi, so I think use currency is more familiar right now. Satoshi or USD it doesn't matter because big profit is our goals. Make sure you not pessimist with volatility because that is market, find the moment and execute your plan.
That's why trading with some stable coin pairs like BTC/USDT seems profitable in these high volatile markets. Prices might quickly drop and reach the dip which actually is a time to buy-back and in this case the ones who are able to convert their bitcoins into USDT at the peak are able to buy-back with their USDT at the dip and it instantly gives them profit.
This has been most commonly used by most of the traders and hence they are able to fill up their losses and land up on profits. In this situation, we gain profits from both perspective i.e we also tend to earn bitcoins/satoshi by constantly selling and buying and also is makes us able to earn a source of income in USDT or any other stable coin used to trade bitcoin with.