Amazon's founder, Jeff Bezos, introduced the concept of one-way and two-way doors to guide decision-making, with over 85% of Amazon's big bets originating as reversible decisions.
Differentiating between one-way and two-way door decisions is crucial for founders and investors to move decisively yet flexibly in the business landscape.
One-way door decisions, like Amazon transitioning to 'The Everything Store' or Instagram pivoting to a photo-sharing platform, are defining, irreversible choices.
In contrast, two-way door decisions, exemplified by Amazon Prime's introduction, allow for testing, adjustment, and pivoting with minimal consequences.
Overanalyzing reversible decisions can impede execution and innovation, illustrated by Blackberry's reluctance to embrace touchscreen smartphones.
Investors who viewed opportunities like Facebook as two-way doors with potential for exponential returns fared better than those who saw them as one-way doors.
Some decisions may seem reversible but lead to disaster when assumed to be flexible, as seen in eBay's mismanagement of the Skype acquisition.
Accelerators like Y Combinator understand that while most startups may fail, the successful ones like Airbnb and Dropbox bring significant returns.
Late-stage investments and major pivots are akin to one-way doors, requiring careful consideration to avoid costly missteps, as seen with SoftBank's investment in WeWork.
Speed is crucial for reversible decisions like marketing strategies, as demonstrated by Slack's pivot from gaming to workplace communication, resulting in a successful acquisition.