I'm don't think software is necessarily "different" than many other types of projects. To implement agile project management you need high-quality instant commu

I'm don't think software is necessarily "different" than many other types of projects. To implement agile project management you need high-quality instant communication. Tools like e-mail, video-conferencing, and Github made agile possible. In a pre-internet era, where every change could take weeks to permeate an organization, change became extraordinarily expensive. With faster communication, the cost of change decreased, and made agile development more attractive.