I don't think we have any active craft capable of recovering it. The space shuttle probably could have done it, but with a cost of about $1.5b per launch, there is no way that would be worth it.
SpaceX's Dragon 2 easily has enough cargo capacity to bring it down (~3 tons vs 0.5 ton), but there's still the question of intercepting, capturing, and securing it in Dragon's cargo bay. That would still cost something north of $100m to recover the lander.
In space, assuming you're not too far out, heat is abundant. Literally just put the ice in an insulated room with a window facing the sun. If you want to get fancy, use mirrors to focus the sunlight.
"Any kind of big idea which is spread primarily through video instead of text is immediately suspicious. Could you please send a link to a written version of the main points from any one of those video?"
This sounds like the same cycle I go through, especially the forgetting part. I've found that cycling caffeine through the week (taking a break on weekends) and just not having too much even during the week can help maintain the productivity, but it also means spending my weekends in a tired daze. I think I just need to commit to not having any caffeine, or if I do, only taking it temporarily before stopping again.
Any mechanism that could switch the magnet on and off would require energy. E.g. you could put a magnet next to it with opposite poles, which would mostly cancel out the magnetic field, but would require a lot of force to push them together, which is work, and thus requires energy.