“Yeth Mathter it ith indeed a complexth and tricky prothedure but twa thoumbs definithely helpths.”

Translated:

twa: two.

“Yes Master it is indeed a complex and tricky procedure but two thumbs definitely helps.”

[twa spelled out in the phonetic alphabet.]

Illustration Friday.
Modify
– igors in the Disc World books of Terry Pratchet are self modifiers par excellence – always looking to improve on nature.