I didn't know Harlem had a tech community. Brooklyn, for sure. But Harlem? That's news to me.
Maybe it would have been more clear if I had used the normal real estate divisions of "workforce", "upscale" and "exclusive". I just thought artists, teachers, techies and celebrities would illustrate the differences a little better for the purposes of making the point against violence.
At any rate... these are just two of several projects throughout Harlem. If you live in an area of Harlem that developers have not encroached on... buy more property around you and sit on it. You are right in the middle of what will be a golden opportunity. (But the prices may already be reflecting that. Wouldn't hurt to check though would be my advice.)