This analysis can be done by searching for information on the number of transactions performed per day and the investments that banks or financial institutions have made in Bitcoin companies. In addition, information on the growth of companies of Bitcoin and blockchain can indicate a possible growth of cryptocurrency, as well as new use cases such as international payments and payment processors.
No one actually knows how long this whole crypto thing will last but instead of losing sleep at night constantly checking token prices which have zero fundamentals behind them, I’d much rather invest in a real business that will make money whether Bitcoin prices go up or down. (Full disclosure: To satisfy my own curiosity, I do own a tiny amount of Bitcoin which won’t make me rich nor will it affect me if the whole space goes to zero).
Always pay attention to Bitcoin. Most altcoins (every cryptocurrency except Bitcoin) are pegged more closely to Bitcoin than Asian currencies were to the USD during the Asian Financial Crisis. If Bitcoin price pump drastically, altcoins price can go down as people try to exit altcoins to ride the BTC profits; inversely, if Bitcoin prices dump drastically, altcoin prices can go down, too, as people exit altcoins to exchange back into fiat. The best times for altcoin growth appear when Bitcoin shows organic growth or decline, or remains stagnant in price.