E778: Greylock's Josh Elman: only metric that matters; Talla's Rob May: should you blockchain/ICO?

Filmed at LAUNCH Scale 2017: Greylock's Josh Elman (prev. FB, Twitter) breaks down the only metric that matters for hyper-growth; Talla's Rob May (prev. Backupify) presents his step-by-step guide for whether blockchain/ICO is right for your startup.