Strictly speaking, you are correct. The key assumption for my statement above is that both objects are black-body radiators.
In practical terms, it still ain't happening when the light source is a bunch of fireflies.
Aside: Lasers are a really weird case. The population inversion required for stimulated emission is basically the opposite of a classic thermal equilibrium. By some definitions, they are so hot their "temperature" wraps around to negative (i.e., less than zero Kelvin). That factoid took me a while to wrap my head around.
Lenses and mirrors can't focus a diffuse source to a sharp point. They are also reciprocal; any light that can move one way through an optical system can also move the other way. As a result, you can't use a lens or mirror to heat something beyond the temperature of the light source. The net flow of energy is always from the hot thing to the cold thing.
For the sun, that limit is almost 6000K, so you can do some damage. For fireflies, not so much.
According to this thread, it's not required for smaller aircraft:
If the aircraft is below 12500 pounds, and has less than 10 passenger seat, and not be certified to require more than 1 pilot, it does not require recorders.
From the moment I understood the weakness of my flesh, it disgusted me. I craved the strength and certainly of steel. I aspired to the purity of the blessed machine.
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
No more delays. Start throwing people in jail for contempt of court.