Productive Bubble

The productive bubble is a concept developed by venture capitalist and economist William Janeway, extending Minsky's framework to technology cycles. Janeway argues that speculative investment in new technologies, even when it produces financial losses for many investors, can leave behind infrastructure of lasting value for the broader economy. The railroad bubble of the 1840s destroyed investors but laid tracks that remained productive for a century. The dot-com bubble destroyed portfolios but built the fiber-optic networks that eventually powered the mobile internet. The concept provides a counterargument to pure Minskyan pessimism: bubbles are wasteful from the investors' perspective but can be net-productive from the economy's perspective if the infrastructure they produce is durable and the productive applications eventually materialize. The Opus 4.6 simulation addresses the concept directly in Chapter 10, arguing that while the framework is partially correct, it does not negate the need for stabilizers — it reinforces it.