Congratulations to Tom! - sh.itjust.works

He persevered, despite the tar and the yellow.
What is the joke? Seems a few people have made a similar comment

The joke is that the guy in the meme hates yellow chemistry (yellow compounds) and failed polymerization(I think that’s the specific reaction) reactions which basically makes tar.

And yes, the description in the meme J’s very accurate.

failed polymerization(I think that’s the specific reaction) reactions which basically makes tar

Often times tar is a result of successful polymerization when you were not intending to polymerize anything.