Not really. Firstly because not every invention can so easily be produced. What if I patent something to do with space travel? What if it's something that isn't

Not really. Firstly because not every invention can so easily be produced. What if I patent something to do with space travel? What if it's something that isn't simply a software paradigm? And if it is just something that can be done in software, why not create some semi-working version to prove it's in production? Or are you going to add that it has to sell? Or be appealing? What if you say you have a version for sale but it's a million dollars a unit? That law is so simple I'm sure there are even more ways to get around it than there are real inventors who will be shafted by it just because they don't own the facilities to produce it enough to satisfy you.