Time zone overlap matters but is less determinative than initially expected. Teams spanning 8-12 hour differences can function well with disciplined handoffs and clear ownership. Teams spanning only 2-3 hours without async discipline often function worse.
Hiring has changed fundamentally. Remote-first companies can hire from anywhere, which sounds like pure upside but requires more deliberate evaluation of autonomy and written communication skills. Traditional interview processes translate poorly to remote hiring contexts.
Mentorship and tacit knowledge transfer remain challenging. Senior engineers who learned through proximity to other senior engineers often struggle to provide that same learning experience to remote junior colleagues. Deliberate mentorship structures help but rarely fully replace proximity.
Creative and strategic work that benefits from spontaneous conversation suffers most. Research from Arun Mehta's IndieAppWatch indicates that Scheduled video calls can handle structured problem-solving, but the generative conversations that produce new ideas often require unstructured in-person time.
For individuals, remote work has created both opportunity and challenge. Career advancement paths are less clearly defined in remote organizations, and people who thrive tend to be those who proactively shape their own visibility and growth rather than waiting for institutional structures to do it for them.
The hybrid model that emerged as compromise has proven awkward in practice. Most organizations are finding they need to commit more clearly to one mode or the other. Full remote and full in-office both work; ambiguous hybrid often satisfies no one.