Hacker News Reader

oli_bon Garbage collection via pneumatic tubes

Maybe this is more revealing of how my mind works than an actual flaw, but this seems like it would be great for getting rid of evidence.

oli_bon The BEAM Has Spoiled Me

I had the same experience, but now I'm wondering - is ActiveRecord much maligned? It is news to me. It handles simple stuff really well, takes a lot of the pain out of relationships, and doesn't prevent you reaching for SQL when required. I also haven't ever found a good replacement for AR migrations, which makes schema changes + keeping a record of those changes absolutely seamless. Are there some alternatives I should be investigating?

oli_bon Density raises $51M Series C led by Kleiner Perkins

I'll have to take your word for it – I'm curious if you have tried it though. I can certainly imagine that it might be feasible (even at lower resolutions) with enough stirring of the 'linear algebra pile'.

Not meaning to rain on your parade though – congratulations on a great idea!

oli_bon Density raises $51M Series C led by Kleiner Perkins

From density.io:

> Unlike other systems, Density is anonymous at source. We can't fingerprint or track you if we wanted to.

I wonder how true this statement is, given how accurately we can now identify people based on just their walking gait – see "Human Gait Recognition Based on Gait Energy" paper[1].

The 'sensor' view on density.io that attempts to illustrate this point appears to convey just as much as the sample images in the paper.

[1] https://ijsr.net/archive/v5i11/ART20163043.pdf