It's a risk to have a child at any age but the risk does raise as you get older scare tactics says it doubles and such after 40 but that doubling is like a 0.5% chance changing to a 1% chance. Adam ruins everything did a piece on this that explains it pretty well.
I'm an electrician and although there's a risk I may get an electric shock at work my training did not include being electrocuted because that's just stupid. This hazing is pretty much the same.
The video mentions exterior roller blinds as well, wasn't too in-depth but his main down points for them would be they still radiate heat close to the glass and they block all sunlight as well as airflow.
Are the gaps between the bricks there for a reason? I would have thought the support for the arch would have come from them touching more then just the mortar.
This badboy (earth's orbit) can hold so many sattelites!