As the economy slows, investors will increasingly search for companies with high and sustainable earnings.After an exceptional 2021, institutional Bitcoin miners are sitting on multi-million dollar war-chests, which they are using to rapidly expand business operations and increase revenue.Marathon Digital and Riot Blockchain are the biggest movers in terms of hash rate expansion, with MARA expected to mine $1.6B and RIOT $800M worth of BTC in 2022.