The Austrian business cycle starts with central banks artificially lowering interest rates below their natural market level. This floods the economy with cheap credit, distorting the crucial price signals that coordinate production across time. Entrepreneurs suddenly see long-term projects as profitable when they're actually maladaptive. The market didn't generate these savings, the printing press did.
You get the boom. Construction companies launch massive developments, tech startups burn through venture capital, and everyone feels wealthy (for a while). The problem? Real resources haven't increased. The central bank created money, not actual capital goods or skilled workers or raw materials.
The bust arrives when reality reasserts itself. Interest rates rise, credit tightens, and those seemingly profitable ventures reveal themselves as wealth destroyers. The 2008 housing bubble followed this script perfectly. Greenspan held rates at 1% for years, developers built houses nobody could actually afford, then Bernanke had to choose between hyperinflation or letting the malinvestments liquidate. We know which path he chose... and here we are again.