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The entire text I misread soldering iron for a regular iron. Up until the very last paragraph. Now everything makes a lot more sense.

I don’t know to this day if I have Synesthesia, but some day as a small child I came to the conclusion that the numbers from 1 to 9 have “fitting” colours to them. It was somewhat based on the theory that the numbers that add to 10 have kind of “matching” colour combinations, but I can’t really remember any reasoning behind it.

• 1: Yellow
• 2: Pink
• 3: Orange
• 4: Blue
• 5: Black
• 6: Red
• 7: Dark green
• 8: Brown
• 9: Purple

These associations have stuck to me to this day, though.