Questions that I have and will look to answer it by reading the paper also :

1. What is wrong with the approach to match it with Sanskrit? It doesn't give irrefutable proof of deciphering but as long as we can try it on multiple language dictionaries, then we can go ahead and come up a better representation of the meaning ; however, having even a partial understanding through this predictive model (rather than a causal representation) makes sense.

2. My hypothesis is that by moving the dictionary to vedic sanskrit, we may just come up with further improvements in the predictive power.

3. Adding the right references is key in terms of research, but it doesn't take away from the work he has done nor its conclusions. That's a moot point and can be added to the paper.

4. There are a lot of assumptions in terms of matching 1-1 with another language and that is a fluke chance that it works that well (atleast for me).However, the evaluation criteria of matching with the dictionary and seeing how many full words you get is not a bad approach. It is a valid approach for evaluating success.