There are three answers to your question:1. $$$$ Money2. Time.3....

There are three answers to your question:

1. $$$$ Money
2. Time.
3. Regulatory issues

The second can be short circuited to a degree by a lot of the first, but not entirely.
The third affects the second - but once again can be helped if there is clearly enough money available to do whatever is required by the regulators and scientists involved.

They need to raise, I expect, millions. For that they need to convince some corporation or investor to put the $s in.
The problem is how that may be secured. Hopefully it may be an agreement where the investor is prepared to take a risk (unsecured) for a share of big profits. Without knowing any details, it would seem from the latest announcement that they are working on something like this and are hopeful of some success. That itself can take time to convince a money supplier to put a lot of money in under such conditions.

I share your hopeful confidence Thaliat and will be hanging on.

Regards

Pesa