[travisb]

At 100 people, every desk-job company is already a remote company, even if they don't know it yet.

Travel distance between desks has already become so large that many people won't do it for small things. For decades now those situations would be handled by a phone call or email.

Meeting in the coffee room to chat becomes rare because schedules and tastes (eg. office coffee versus off-site coffee, bagged lunches versus going out) differ. Also there's too many people and too much churn to really get to know anybody.

Arranging meeting times becomes difficult outside smaller 5-10 person units so asynchronous communication becomes predominant.

What I've seen work is not trying to co-locate a full team at all. Doing so only leads to silos and hiring difficulties. Instead have small offices which people from a small geographic area use. Those people will be on different teams and in different departments -- which is good for inter-team communication and synergy. This is exactly what offices normally miss because teams are co-located resulting in a relatively high 'distance' to build a rapport between teams.