Minecarts with chests calculate their weight!?

Basically, I found out from https://www.reddit.com/r/Minecraft/comments/1wuph8n/comment/pd57dwv/ that minecarts with chests calculate their weight. So I decided to make a short video on it. (I wish it was longer, but I couldn't make a system to actually use this) (IDK if this is on bedrock, lmk and i'll update the flair)

The formula is `0.98 + 0.001 * (15 - container_redstone_signal)`, if its in water, it is further multiplied by `0.95`