The Government's rent reform plan was hailed as a document that would provide the most elusive of political commodities: Certainty.
It was in short supply for much of the day as the potential impact of these changes was difficult to pin down.
The first indicators of the success - or failure - of its primary aim should be evident within months.
By then it will be clear if investors have been enthused enough to begin building those apartment blocks that already have planning permission.
The rent structure in new apartments will stand apart from all other properties in that it will be tied to inflation rather than a 2% annual cap for all other properties.
Before all that, however, there is the question around what might happen between now and 1 March next year.
This is the date when landlords will be able to begin setting rents for new tenants at market rates.
Already industry figures are suggesting that any landlord with a property ready for rent will now hold back to rent until that date.
There is logic to this reasoning and if things unfold in this way, it will surely lead to an even greater shortage of rental properties over the next few months.
Then, there is the issue of future rents, almost all of which will have that rent cap of 2% annually.
But crucially unlike the rules for current rent agreements, new tenancies will allow a landlord to increase the rent to market rates after six years, or sooner if a tenant leaves voluntarily.
The political charge is that this marks the death knell for proper rent regulation.
Read more: Government signs off on plan for national rent controls
The Government's counter-argument states that this is the trade-off for improved protections for renters.
They will now have a guaranteed tenancy for at least six years.
This rental agreement can only be terminated if a landlord faces hardship, or they need the home for a family member.
At the end of a six-year tenancy, a smaller landlord can end the agreement if they want to sell or renovate the property.
Tenants who have a landlord who rents out four or more dwellings get somewhat more certainty given that there is a ban on no-fault evictions for this group.
Overall, the independent analysis of the approach chosen by the Government concluded that it may lead to rent inflation.
It adds that this will only moderate when the supply of housing increases.
Notwithstanding the fog hanging over parts of this new plan, that immutable fact remains strikingly clear.
