The other bits about doing something useful with it are either incredibly foolish or a straight hoax (and I'll eat a shoe on camera if that turns out to be wron

The other bits about doing something useful with it are either incredibly foolish or a straight hoax (and I'll eat a shoe on camera if that turns out to be wrong) but the premise of having a spot of light appear for ~4 minutes after dark is plenty doable (in fact, been done before) and depends solely on how much funding they secure before people realize the first half.