It forces you to think about liquidity and inefficiencies—which is good. But it overpromises by attributing intent ("smart money") to random price movements.
An Order Block is a large pending order placed by institutions. To find the top, you need to locate the last Order Block before the drop.
: Understanding that institutions cannot enter the market with a single large order without causing massive slippage. Instead, they break orders into "Order Blocks" to enter algorithmically.
: Evolution of failed order blocks that later act as new support or resistance levels. Smart Money Concepts Explained | PDF | Supply And Demand