Have we made any progress in the last 50 years?

Yes, and according to the teaching of brother Eli and in his explanations,we have greatly made progress in the last 50years.

In science yes we have,in understanding of the word of GOD,we have made progress and in discoveries progress have been made.
Daniel 12:10 (KJV) Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.

Daniel 12:4 (KJV) But thou, O Daniel, shut up the words, and seal the book, even to the time of the end: many shall run to and fro, and knowledge shall be increased.