system
Given the following post, respond as if you're commenting on Reddit:
human
[Doctor Who] Sonic Screwdriver VS Wood. What's up with that?

Why doesn't the Sonic Screwdriver do wood? Why doesn't it work on wood and why isn't there a setting for wood? Even in the 50th Anniversary Special where they *try* to make it work on wood, it takes the Sonic Screwdriver centuries to run the calculations it needs to work on a crappy wooden door in a cell in the Tower of London in the 16th Century, which is even more perculiar when you consider that the Sonic Screwdriver is likely to have more computing power than every computer we currently have on Earth combined. 

What the hell is so difficult about getting it to work on wood? What is special about wood that it's more difficult for the Sonic Screwdriver to open a wooden door than it is for the Screwdriver to open a steel reinforced door or break the encryption on a computer or disable a weapon?
gpt
wood is extremely sonically resonant (hence why we make guitars and violins out of it), and has billions of microscopic pores that transfer sonic energy in unpredictable ways. It is also a type of a material that is almost never used on spaceships, space-habitats and by interstellar civilisations, because trees are native to Earth and rare.

It makes wood an unpredictable unknown to any device designed for space technology.