The degree to which downtown Denver and adjacent districts like RiNo are drawing tech firms from suburban areas and from out of state is quite remarkable. The "go downtown" movement, which certainly has been a thing since we came out of the recession, seems to have accelerated in the past year or two to a whole new level.
This is a fun website to play around with:
https://www.cyberstates.org/
According to their data, Colorado has 285,300 tech workers (Washington state has 363,500, Utah has 135,500, Arizona has 237,100) and of that, Denver metro has 173,900 workers--which does not even include Boulder County, clearly a tech hotspot.
Anyway, employment growth in downtown--particularly tech--has been remarkable this real estate cycle. In past booms, it seemed that most of the office leasing action in downtown was firms moving around within downtown from building to building. This cycle, there is clearly a big in-migration of jobs to Downtown, with new office development to match.
Just these two announcements of VF Corp. and Slack is over 300,000 SF of net absorption in one day. That's pretty amazing.