I live in a country which has experienced some hard and soft embargoes over the years, and let's look what has it done.
- We wanted to buy drones, and denied. Now we are one of the biggest drone manufacturers in the world.
- We denied air defense systems. We are developing a whole arsenal of missiles and rockets now, incl. standoff/cruise missiles.
- We denied planes. Our 4.5th generation fighter program got a great speed boost.
- We denied advanced naval technology. We built stealth ships, fast coastguard boats and all navigational systems which goes inside them.
- We denied optical pods for drones and aerial vehicles. We built our own in 6 months.
etc. etc...
Sanctions and embargoes are the biggest catalyst for a country to advance their tech at tremendous velocity.