Alex Reynolds' first company in the in-person connection space, built on the LinkedIn connection graph: if two professionals were not connected directly but shared many second-degree connections, Swift Intro matched them for one-on-one professional meetings. It helped thousands of people meet and was gaining traction when LinkedIn shut down its API, removing the company's number-one data source overnight and ending the business — the lesson Alex cites for building Vendelux on robust, diversified data sources.