Based on the shape and the pricing per square metre, it looks like the primary use case is for pavement. As for being a "horrible idea", this is what happens t

Based on the shape and the pricing per square metre, it looks like the primary use case is for pavement. As for being a "horrible idea", this is what happens to plastic today in the slums of Nairobi: https://media.gettyimages.com/photos/kibera-slum-nairobi-picture-id184229060 https://media.gettyimages.com/photos/kibera-slum-nairobi-pic... Even if the bricks leach a bit, it's still much better than the status quo of soaking individual plastic bags in sewage for years.