[An] often overlooked viral loop concept is cycle time. That's the average time it takes to complete one loop, e.g. the cycle from sending out an invite to the person who was invited sending out an invite.
Cycle time is important because along with the k-factor, cycle time determines growth trajectory. You can be exponential, but still grow really really slowly. A decent analogy would be radioactive material with a really long half life. It could take you a while to double...
A brief but helpful article with some tips about how to reduce that cycle time, namely:
- Send out reminders at various opportune times
- Create a sense of urgency
- Shorten the time between sign up and invite