I wonder about many things when I see this, but to pick out one detail: won't those mirror walls soon get damaged by the wind carrying sand? And, when you stand

I wonder about many things when I see this, but to pick out one detail: won't those mirror walls soon get damaged by the wind carrying sand? And, when you stand in front of them and the sun is up, won't that get quite hot? And, wouldn't it be better to somehow use the walls to collect solar power (thermal or electrical) from them instead of letting them just reflect the light? And won't birds in great numbers crash into the façade like people in a house of mirrors? And isn't it ugly?