Every trillion-dollar company owns a museum of the moments it almost died, and a longer corridor of the fortunes it declined. Excite turned down all of Google for $750,000. Intel passed on making the iPhone chip and said no to buying Nvidia, twin decisions that cost it two computing eras. Yahoo declined to buy Google, then Facebook, then sold itself for less than it once refused to pay. In this industry the biggest losses are usually invisible: they are the deals not done and the memos not believed.
The pattern behind those misses is always the same, and it is not stupidity. Smart executives valued the future by what it added to their existing model, instead of asking what it would do to that model. Search looked like a commodity feature to a portal company. Graphics chips looked like a toy market to a CPU monopoly. By the time the frame proved wrong, the price had grown a thousandfold. The reverse error exists too: paying $44 billion while waiving due diligence shows what happens when conviction outruns scrutiny.
These investigations treat Big Tech the way historians treat empires: not as inevitabilities but as a sequence of choices that could have gone the other way. Power, in this archive, is just the compound interest on a few decisions that happened to be right.