Step 2: Realize that in the last 40-50 years there hasn't been many huge revolutionary inventions/ideas like those in computing. Sure we have made things smaller and faster computationally but those are just iterations on a foundational thing that already existed.
Step 3: Try to create something like PARC: gather a lot of bright minds together from different fields in a research setting. Fully fund them for 5 years (maybe this is step 2a - get $50-100 million together).