"Serendipitous encounters" refers to unexpected and fortunate meetings or experiences that happen by chance, leading to positive outcomes or new opportunities. Full definition
My favourite exhibitions over the past year were notable for serendipitous encounters with artists both familiar and new to me. (frieze.com)
Employees who work together can bounce ideas off each other more easily, serendipitous encounters lead to fresh thinking, bonding is easier, decisions can be made more quickly. (inc.com)
Firms shove their staff into open - plan offices to encourage serendipitous encounters. (economist.com)