Thank you, John. Great question. I think it's very difficult. I think fundamentally, that's very, very difficult. And therefore, if you look at our announcements, we are really focused on direct reduction iron as a technology, DRI or HBI, some of the plants in the U.S. are producing, where the shaft is different and fundamentally, you're not relying on that burden, but you're relying on natural gas. So globally today, we produce about 9 million tonnes of metallics through the DRI route, and it uses natural gas. Switching DRI facilities from natural gas to hydrogen is possible. We actually have a pilot in Hamburg, Germany, where we're going to build a 100,000 tonne DRI facility, which will be using hydrogen exclusively. And we feel that we can retrofit or make modifications to existing DRI plants. So to the extent that you have a blast furnace, like we have in some of our integrated sites as well as in Canada, our first option is really to direct a DRI plant, get the metallics, put it into an EF and then use renewable power to melt it. So that's fundamentally our strategy. We call it the Innovative DRI route, because the natural gas is a transition fuel. And when hydrogen becomes cost effective, you can use it – you can inject hydrogen. Nevertheless, there is a lot of work going on in terms of blast furnace technology exactly trying to address the question that you posed. And I think there could be a combination when, yes, you still continue to use coke. You increase the level of hydrogen or other gases, like oxygen. But at the same time, you capture the CO2 coming out. And that CCU and CCS technology, that's what we call the Smart Carbon route. We actually have a big pilot – a big plant now, no longer a pilot where we have spent €180 million in Belgium and Ghent, which does exactly that. It captures the CO2 from the furnace. It has microbes or bacteria, which eats up to CO2 and converts it into a bioethanol product. And obviously, the EBITDA is not – is generated not only because of the CO2 saving but because of the value of the bioethanol that is generated. So look, it's – decarb is going to be a long journey. There will be technology evolution and new things that’s get developed. I think we're looking at various options. We're also looking at electrolysis. So you have the Innovative DRI route, you have the Smart Carbon route, electrolysis. And I think finally, based on geography, based on the plant, you will figure out what is the most optimum solution for that site. And I don't know if I've answered the question, but I think that's how we're looking at it at ArcelorMittal.